12 Top Biodegradable Soaps of 2021 That Are Eco-Friendly (Using The 200 Feet Rule)

By Georgette Kilgore | Updated on October 6, 2021

The recent pandemic has caused us all to appreciate soap a little bit more, and these days, biodegradable soap is more readily available than before, and a popular choice for campers and outdoor enthusiasts.

But, did you know that there are levels and limits to the term “biodegradable?” Lathering up is an important way to stop the spread of germs, but many people wonder how good it is for the environment?

A green bar of natural, biodegradable soap leaning against an 8 Billion Trees box, on a white background.

Finding a soap that leaves hands (and environmental consciences) clean isn’t a chore, if you know what to look for…

So, we’ve compiled a list of the best eco-friendly and biodegradable soap options available… check ’em out…

Best Eco-Friendly Biodegradable Soaps


Best All Natural Bar Soap: United By Blue

Won't harm ground water and many brands are hypoallergenic.


Best Organic Soap: Kirk's

All Natural ingredients and great scent.


Best Sustainable Soap: Ursa Major

Reducing plastic waste.


Best Eco-Friendly Soap: Alpine Provisions

Recycled packaging in a biodegradable soap that won't hurt the planet.


Best Organic Liquid Biodegradable Soap: Dr. Bronner’s

Liquid soap that's both eco-friendly and biodegradable.


Best Sustainable Liquid Soap: Sea to Summit

Low suds but can be used in a number of ways.


Best Biodegradable Liquid Soap Scent: Sierra Dawn

Smells great!


Best Outdoors Liquid Biodegradable Soap: Juniper Ridge

Lots of hydrating oils.


Most Versatile Liquid Soap: Joshua Tree

Contains Tea tree for a natural disinfectant.


Best Eco-Friendly Soap Sheet: Kind Lather

Soap sheets can be used with or without water and these are made from recycled paper.


Best Value Soap Sheet: Coleman

Low cost soap sheets can be used without water.


Best Insect Repellant Soap Sheet: Sea to Summit

Naturally repel insects.

Best All Natural Bar Soaps

Bar soaps are available in all sorts of sizes, scents and options. When choosing a biodegradable bar soap, look for products that are free from palm oil (unless it specifically states it’s sourced sustainably). The following products provide a rich lather and most have the added benefit of moisturizing skin, to reduce dryness.

United By Blue

An image of the United By Blue Mt. Mazama Rogue Soap against a white background.
Name: Mt. Mazama Rogue Soap
Why We Love This Biodegradable Soap: Made with natural ingredients and the packaging is 100% biodegradable
Eco-friendly Soap Ingredients: Organic Saponified Palm, Coconut and Olive Oil, Essential Oils, and French Green Clay
Sustainability Initative: A pound of trash is removed from the ocean and waterways for every product sold
Price: $$/Per Bar
Cons: No information if the palm oil used is from sustainable sources
Rating: 5 out of 5


An image of the Kirk's Original Coco Castile Bar Soap against a white background.
Name: Original Coco Castile Bar Soap
Why We Love This Biodegradable Soap: Made with vegetable-based ingredients and fragrance free good for sensitive skin and skin allergy treatment.
Eco-friendly Soap Ingredients: Coconut Oil, Glycerin, Water, Sodium Chloride.
Sustainability Initative: None listed
Price: $/Per Bar
Cons: No current eco-initatives
Rating: 4 out of 5

Ursa Major

An image of an unwrapped Ursa Major Morning Mojo Bar Soap against a white background.
Name: Morning Mojo Bar Soap
Why We Love This Biodegradable Soap: Made with natural ingredients, energizing, exfoliating, moisturizing and hydrating.
Eco-friendly Soap Ingredients: Peppermint, Honey, Sea Sennel, Coconut, Volcanic Rock, Shea Butter
Sustainability Initative: Removes 2 bottles of plastic for every bottle sold, uses at least 50% recycled plastic for packaging, 90% of carton used are produced in a carbon neutral facility.
Price: $$$/Per Bar
Cons: Pricey for a single bar of soap.
Rating: 5 out of 5

Alpine Provisions

An image of the wrapped Alpine Provisions Rosemary + Mint Bar Soap against a white background.
Name: Rosemary + Mint Bar Soap
Why We Love This Biodegradable Soap: Made of organic ingredients and has anti-aging properties
Eco-friendly Soap Ingredients: Coconut Oil, Palm Oil, Rosemary Essential Oil, Peppermint Essential Oil, Eucalyptus Essential Oil, Tea Tree Essential Oil
Sustainability Initative: Recyclable paper packaging, made from sustainably sourced palm oil
Price: $$/Per Bar
Cons: Scent may bother some.
Rating: 5 out of 5

Organic Liquid Biodegradable Soap

Liquid soaps are fast and easy to use, but typically, that convenience is reflected in the carbon footprint of the liquid soap. These products, however, won’t harm the groundwater when used outdoors, and many are working to lower their footprint.

Dr. Bronner’s

An image of bottle of Dr. Bronner's Pure Castile Liquid Soap against a white background.
Name: Pure Castile Liquid Soap
Why We Love This Biodegradable Soap: Made with organic, certified fair trade ingredients and can be used in 18 different ways
Eco-friendly Soap Ingredients: Coconut Oil, Potassium Hydroxide, Palm Kernel Oil, Olive Oil, Hemp Oil, Jojoba Oil, Almond
Sustainability Initative: Used 100% recycled plastic for packaging
Price: $$$$/32 Ounces
Cons: Pricey, but very soft on skin and hard on dirt and germs
Rating: 5 out of 5

Sea to Summit

An image of a bottled Sea to Summit Wilderness Wash Biodegradable Concentrate against a white background.
Name: Wilderness Wash Biodegradable Concentrate
Why We Love This Biodegradable Soap: Biodegradable and versatile, can be used for bathing, washing clothes, and dishes
Eco-friendly Soap Ingredients: Cocamide MEA and Glycerin
Sustainability Initative: None listed
Price: $$/8.5 ounces
Cons: Low suds formula may not be for everyone
Rating: 5 out of 5

Sierra Dawn

An image of bottles of Sierra Dawn Campsuds Outdoor Soap against a white background.
Name: Campsuds Outdoor Soap
Why We Love This Biodegradable Soap: Biodegradable soap is multi-purpose, and can be used for bathing, washing clothes and dishes.
Eco-friendly Soap Ingredients: Purified Water, Lavender, Citronella and Natural Fragrance Oils
Sustainability Initative: Not Listed
Price: $/2 Ounces
Cons: Plastic bottles
Rating: 5 out of 5

Juniper Ridge

An image of a bottle of Juniper Ridge Cascade Forest Body Wash against a white background.
Name: Cascade Forest Body Wash
Why We Love This Biodegradable Soap: Organic and antioxidant with hydrating oils. Can be used as body wash shampoo, shaving cream, fruits and vegetables wash, foot bath and dog bath
Eco-friendly Soap Ingredients: Coconut Oil, Sunflower Seed Oil, Rosemary
Sustainability Initative: 10% of profits are donated to wilderness protection
Price: $$$/8 ounces
Cons: Not as sudsy as expected, fragrance might be too strong for some
Rating: 5 out of 5

Joshua Tree

An image of a tube of Joshua Tree Tea Tree + Mint Body Wash against a white background.
Name: Tea Tree + Mint Body Wash
Why We Love This Biodegradable Soap: he tea tree oil from the product can be used to gently cleanse and heal open wounds and sores (it's a natural antibiotic)
Eco-friendly Soap Ingredients: Coconut Oil, Palm Kernel Oil, Peppermint Oil, Tea Tree Oil
Sustainability Initative: Not Listed
Price: $$/per tube, $$$/per bottle
Cons: No information about whether the palm oil used is from sustainable sources
Rating: 4 out of 5

Best Eco-Friendly Soap Sheets

Biodegradable soap sheets are perfect for taking on the go, camping, or simply stashing in your bag. When made with essential oils, the cleaning power won’t dry your skin.

Kind Lather

An image of the Kind Lather Natural Paper Soap against a white background.
Name: Natural Paper Soap
Why We Love This Biodegradable Soap: Made with plant-based ingredients, can be used for bathing, shaving and dish washing
Eco-friendly Soap Ingredients: Shea Butter, Coconut Oil, Red Palm Oil, Aloe, Natural Oat Protein
Sustainability Initative: Kind Lather plants 2 trees for every product purchased, uses 100% eco-friendly shipping materials
Price: $$ for 20 sheets (up to 160 uses)
Cons: No real downside, other than full bathing can be tricky
Rating: 5 out of 5


An image of the Coleman Camp Soap Sheets for Dishes and Hands against a white background.
Name: Camp Soap Sheets for Dishes and Hands
Why We Love This Biodegradable Soap: Biodegradable, can be used to wash hands and dishes
Eco-friendly Soap Ingredients: PVA Alcohol, Corn Starch, Water, Paraffin Wax, Tetragon Lobo Gum
Sustainability Initative: Not Listed
Price: $ for 50 Sheets
Cons: These are biodegradable, but the container is plastic
Rating: 4 out of 5

Sea to Summit

An image of the Sea to Summit Trek & Travel Pocket Body Wash against a white background.
Name: Trek & Travel Pocket Body Wash
Why We Love This Biodegradable Soap: Biodegradable, phosphate and paraben free. Other variants include conditioning shampoo, laundry wash and shaving soap
Eco-friendly Soap Ingredients: Tapioca Starch, Glycerin, Parfum, Citronellol, Mineral oil
Sustainability Initative: None listed
Price: $$$ for 50 sheets
Cons: Pricey and smell could irritate some users
Rating: 5 out of 5

What is the Definition of Biodegradable Soap?

The American Society for Testing and Materials defines biodegradability in soap as the ability to decompose naturally to 90 percent water and carbon dioxide within six months of being used.1,2

But not everything that suds is soap.

True soap differs greatly from a lot of the sudsy liquids used for washing hands, dishes, and laundry. True soap only needs three ingredients to do its job: Oil (vegetable or animal fat), water, and lye (Potassium hydroxide).3 Soap in this basic form (generally bar soap) is environmentally safe, biodegradable soap, as its natural components break down quite quickly with no adverse effect to the environment.4

With any other soaps labeled “biodegradable,” be sure to still avoid any potential harm and dispose of the suds correctly. Biodegradable soap is made to break down in soil, not water, so do your washing, bathing, and cleaning at least 200 feet away from any water sources. Then, simply dig a hole six inches deep to dispose of the soapy water in, so the bacteria in the soil can break it down effectively.

True soap is proven to be highly biodegradable,4 so it’s best to stick with simple soaps composed mainly of fats for washing and cleaning needs. From a health perspective, if a soap is biodegradable, it’s probably lacking potentially harmful and polluting chemicals. Biodegradability is a great gauge to not only measure the environmental impact of soap, but its toxicity for humans.

Saponification (Science Stuff Alert)

Saponification is a process that involves the conversion of fat, oil, or lipids,44 into soap and alcohol by applying heat in the presence of aqueous alkali (e.g. NaOH).45,46 Soaps are salts of fatty acids, and fatty acids are monomers of lipids that have long carbon chains (at least 10) e.g. sodium palmitate.47 Saponification reactions are generally exothermic and almost totally irreversible.48

Saponification can be defined as a “hydration reaction where free hydroxide breaks the ester bonds between the fatty acids and glycerol of a triglyceride,49,50,51 resulting in free fatty acids and glycerol,”52 which are each soluble in aqueous solutions. This process specifically involves the chemical degradation of lipids,53 which are not freely soluble in aqueous solutions. Heat-treated lipid residues are more difficult to remove than non heat-treated residues because of polymerization, which is the process in which small molecules combine to create a polymer. Saponification plays a critical role in cleaning lipids which are present in process areas involving cell growth and cell processing, such as bacterial fermentation and cell disruption process.54

Most liquid “soaps” — such body wash, hand soap, dish soap, and laundry detergents — derive their cleansing benefits from mostly synthetic suds-inducing surfactants,5 compounds which decrease the surface tension of water. Unlike the humble bar soap, most liquid “soaps” rely on loads of chemicals to generate a cleansing effect.

The general rule of thumb is liquid “soaps” are usually more synthetic than bar soap, and thus have greater environmental implications. Soaps of all kinds become worse for the environment and even human health in proportion to their added chemical fragrances, preservatives, dyes, and cleaning boosters. Many of these chemicals take a long time to break down naturally, if at all, and may pose risks to the human body during use.

Unfortunately, some detergents and “soaps” listed as “biodegradable”6 are only so in very exacting lab or industrial conditions, thus requiring astute attention to “plant-derived” ingredients. As always, it’s best to buy eco-friendly products with ingredients that are clear, few, and understandable.

What Is the Carbon Footprint of Soap and Detergent?

Soap contributes a surprising amount of carbon to the atmosphere. According to the European Commission,7 various soaps, detergents, and other cleaning supplies emit 200 pounds of carbon dioxide (CO2) per person into the atmosphere every year. Scientists from the Zurich Institute of Environmental Engineering launched a life cycle assessment study of common household cleaning products,8 including soaps and detergents. The study considered every factor of soap’s life cycle, including manufacturing, transport and storage, use, and disposal.

The environmental impacts between bar soap and liquid soap/detergents were shocking, and not in a good way for fans of bottled suds:

  • Liquid soap has a carbon footprint 10 times higher than bar soap.
  • Liquid soap requires almost 20 times more energy to package than bar soap.
  • In a 30 second hand wash, people use .35g of bar soap vs. 2.3g of liquid soap.

That means it takes six times the amount of liquid soap to do the same job as bar soap. That magnification travels all the way up and down the soap’s value chain, meaning six times more raw materials and six times the space needed for transport and storage.

Aside from liquid soap’s carbon footprint, the surfactants, preservatives, dyes, and fragrances in it biodegrade quite stubbornly, whereas bar soap (mostly made from oils) degrades rather quickly.

However, the Swiss study did find bar soap has an environmental footprint twice as high as liquid soap, due to the fact that it is largely derived from plant oils (which are farmed). What is more, it takes more water to wash up with bar soap than liquid soap, and with it the environmental costs of heating and treating wastewater.

But if these plant oils can be sourced ethically and sustainably, it could still be a better option than liquid soap from a land-use perspective. Simply put, agriculture has the potential to heal soil and sequester carbon, whereas mines and refineries do not.

Three bars of natural soap on a white background

Regardless of the product, the majority of the carbon footprint occurs on the consumer level, not in production. Using soaps and detergents sparingly and efficiently will prove the best prevention to unnecessary greenhouse gas (GHG) emissions.

Conventional soap has a dirty carbon footprint in other ways:

  • Soaps made from vegetable-based oils present a problem. Vegetable oils require massive amounts of water, land, and energy to produce. Even more insidious is the common use of palm oil in soaps, which is derived from an extremely extractive process leading to the decimation of thousands of acres of native forests in Southeast Asia.11
  • Surfactants, the cleaning agents present in most liquid soaps and detergents, are petroleum-based. Most surfactants eventually biodegrade in aerobic conditions, but aren’t readily degradable in anaerobic conditions,9 such as underwater and beneath the ground.
  • Most liquid soaps (and many bar soaps) contain preservatives, dyes, and fragrances that negatively impact human health and the environment.
  • Detergents are water soluble,6 meaning they produce heavy foam which has negative effects on the environment.

A biodegradable soap is a step in the right direction, but there’s more to a truly environmentally friendly soap than that. All-natural, sustainable soaps are as good for humans as they are for the planet, taking into account all inputs and outputs of the products’ life cycle. What is more, they contain none of the potentially harmful chemicals present in conventional soaps, resulting in a healthy earth and healthy skin.

An 8 Billion Trees graphic titled 'Top 10 Palm Oil-Producing Countries' and an illustration of a world map, with thousands of tons of oil produced per country, showing that Malaysia and Indonesia are leading in palm oil production.

What Types of Eco-Friendly Soaps are Available, and Why Is Palm Oil Bad?

Eco-friendly soaps and detergents are available in bar, liquid, and powdered forms. When looking for the right product, the old adage “less is more” applies. Look for soap with the fewest ingredients possible, and all of them biodegradable. Keep in mind that some ingredients may sound like dangerous chemicals, though in reality they’re completely safe.

If an ingredient is in doubt, the Environmental Working Group’s Skin Deep ingredient database offers in-depth reviews on soap and detergent ingredients.10

Whenever possible, buy products that are Certified Organic and Fair Trade, and those that offset carbon emissions from their products.

Eco-Friendly Bar Soap

Bar none (excuse the pun), bar soap is almost unequivocally the most eco-friendly option for cleaning up. Because of its solid composition, relatively low carbon footprint, and often compostable packaging, bar soap has the least amount of processing footprint, fewer ingredients, uses less water in production, and (usually) lasts longer ounce-for-ounce when pitted against liquid detergents.

When choosing bar soap, be sure to check the ingredients list for any of the chemicals mentioned later in this article. Alternatively, purchase locally-made products, which have a much lower carbon footprint. Many of these soaps are of exceptional quality and made with all-natural ingredients, and can be found at local farmers markets and boutiques.

Clean Hands, Dirty Soap: Why Palm Oil Free Products Matter

If it isn’t clear by now, biodegradability doesn’t promise eco-friendliness. Palm oil, a completely biodegradable product, is one of the most unethical “natural” commodity products on the market.11 Palm oil is found in over half of packaged U.S. products, including many soaps. Palm oil requires destructive clearing of tropical rainforests,12 which destroys critical habitat for endangered species and devastates indigenous communities. In Malaysia and Indonesia, clearing rain forests to make way for palm plantations emits roughly 500 million tons of carbon dioxide every year, representing 1.4 percent of global net carbon emissions.13 Palm oil emitted 25-36 billion tons of carbon dioxide per year from 2000-2015.14

Avoiding soap and shampoo containing palm oil is an important way to ensure biodegradable cleaning products are not contributing to climate change and environmental injustice.15,16

An 8 Billion Trees graphic of a line chart titled 'Palm Oil Contribution to Global Warming,' showing CO2 emission from palm oil and the percentage share of global Co2, with the levels rising over time from 2000 to 2016.

Best Biodegradable Liquid Soap

Liquid soap is an essential for washing hands and dishes. Thankfully, plenty of sustainable options exist for environmentally-conscious consumers.

Many big-name brands are looking to get their slice of the eco-friendly detergent and soap pie. Major producers now produce countless plant-based dish soaps, hand soaps, and laundry detergents.

When purchasing liquid soap and detergents, consider purchasing them in pouches, refillable containers, or recycled/compostable material. Buying in bulk is also a great option.

  • Environmentally friendly hand and dish soap: From simple castile soap to plant-based liquid soap, there’s an eco-friendly option for every need and occasion. The best eco-friendly liquid soaps naturally kill germs and cut grease while leaving hands moisturized. Look for products that:
    • Contain no parabens, sulfates, phosphates, phthalates, artificial dyes, or fragrance.
    • Use natural moisturizers such as olive oil, aloe vera, and glycerin
    • Are cruelty-free and palm oil-free.
  • Soapberries. Soapberries have gained massive popularity in recent years for laundry and personal hygiene. This incredible, lathering berry hails from the Sapindus mukorossi tree. When moistened and rubbed, the berries produce a lather that works remarkably well for cleaning. The secret sauce? Soap berries contain saponins,17 a natural soap-like substance. Soapberry-based products exist for hand soap, laundry detergent, body wash, and shampoo. Many of the better brands out there are independent, know their supply chains well, and are completely biodegradable.
  • Plant-based laundry detergents. Plant-based liquid laundry detergents range between almost 100% and 65% plant-based ingredients.18 When searching for biodegradable detergents and soaps, be sure to identify any, if any, remaining non plant-based ingredients, as well as what “plant-based” ingredients may actually be potentially harmful (see the above list of ingredients to avoid … many of them are still present in “plant-based” soaps and detergents). Look for descriptions on the label indicating the detergent as:
    • “Phtlathate/synthetic fragrance-free”
    • “Plant-based surfactants”
    • “1,4 Dioxan-free”
    • “Petrochemical-free”
    • “Dye-free”
    • “Phosphate-free”
    • “Glycol-free”
    • “Caustic-free”

Keep in mind some plant-based soaps and detergents still contain chemicals that aren’t easily biodegradable. If there are too many non-biodegradable ingredients or you have doubts, it’s always a good idea to just opt for good ‘ol fashioned natural bar soap.

Still, mostly plant-based liquid soaps and detergents are superior to conventional products, which contain a slew of harmful chemicals and petroleum byproducts. A recent study discovered replacing every United States home’s petroleum-based laundry detergent would save 149,000 barrels of oil every year.19

Do the Best Organic Soaps Mean They’re Good for Your Skin?

Skin is the largest organ in the body, and absorbs 64 percent of what is put on it.55 The average soap product likely contains some form of potentially dangerous compound that could hurt you or the environment.

Absorption of harmful ingredients (such as the following) in conventional soap can lead to a slew of allergic reactions:20,21

  • “Natural” rubber
  • Fragrances
  • Preservatives
  • Dyes
  • Metals

The best organic soaps are free from the worst toxins, meaning fewer potentially harmful chemicals will be absorbed into the skin. They have a pH similar to conventional soaps, so the pH drying factor of organic vs. inorganic soap is inconsequential. However, many of the toxins present in average soap are known desiccants.

What Sort of Ingredients Should I Look for When Buying the Best Biodegradable Soap?

One of the key differentiators between eco-friendly soap and their dubious counterparts is the use of saponification over surfactants. Where surfactants artificially create a lathering effect, saponification naturally converts fats and oils into soap. Here’s a list of all-natural, safe ingredients common in eco-friendly, biodegradable bar soap:

  • Essential oils
  • Animal or vegetable oils
    • For liquid soaps, look for “saponified” before the oil name.
  • Aloe Vera
  • Sodium/Potassium Olivate (saponified olive oil)
  • Sodium chloride (salt)
  • Potassium hydroxide (potash)
  • Citric acid
  • Oats
  • Vegetable glycerin
  • Peppermint
  • Clay
  • Turmeric
  • Tocopherol (Vitamin E, a preservative)
  • Goat’s Milk
  • Honey
  • Olive Oil
  • Cinnamon
  • Natural Dye
  • Lye

A black bar of natural soap leaning against an 8 Billion Trees box, on a white background.

Here’s a list of common soap ingredients to steer clear from… they are horrible for both you and the groundwater:

  • Parabens:22 Parabens come in a variety of forms, but all include “paraben” in the name. These are a known endocrine disruptor,23 tricking the body into thinking that it’s estrogen. They can harm human development, and are toxic to the environment.
  • Sodium Lauryl Sulfate/Sodium Dodecyl Sulfate (SLS):24 SLS is a surfactant used to bolster the foaming power of soaps. It has been linked to eye,25 lung, and skin irritation, and may be toxic to internal organs in certain doses. SLS is also linked to endocrine disruption, reproductive issues, and developmental issues. SLS is also toxic to aquatic life.26
  • Methylisothiazolinone (MIT) and Methylchloroisothiazolinone (CMIT):27,28 These preservatives are often put in “natural” soap as an alternative to parabens, so be sure to keep an eye out. Risks associated with MIT and CMIT could include skin and respiratory irritation and neurotoxicity.29,30 They are both corrosive, toxic, and environmentally hazardous.
  • Cocamidopropyl Betaine:31 This surfactant helps create suds and regulate the viscosity of liquid soaps. It has been linked to skin reactions, contact dermatitis, and environmental toxicity. Keep in mind Cocamidopropyl Betaine may show up on the ingredients list in a number of names, including CADG, Cocamidopropyl dimethyl glycine, Disodium cocoamphodipropionate, Cocoamphocarboxypropionate, and Cocoamphodiproprionate.
  • Sodium laureth sulfate (SLES):32 SLES is a surfactant commonly used in liquid soaps, increasing their lathering effect. SLES has been linked to organ toxicity, and irritation to lungs, eyes, and skin.
    • This ingredient is an ethoxylate, which may introduce 1,4-Dioxane,33 which is known to harm the eyes, lungs, skin, liver, and kidneys, in addition to being potentially carcinogenic.34
  • Benzalkonium chloride:35 This substance is used as a foaming agent and/or preservative. It is a known irritant,36 and may elicit contact allergies at extremely low doses.37 Furthermore, BC has been shown to decrease fertility in mice,38 even when not directly applied.
  • Triclosan:39 This chemical is the antibacterial agent found in “antibacterial” soap. It’s been linked to creating antibacterial-resistant germs, prompting the FDA to ban it in 2016, so you’ll likely not run into this ingredient in the store.
  • Phtalates:40 These are becoming less prevalent in many soaps, but still show evidence of toxicity to humans in high concentrations.41
  • Phosphates:42 These chemicals cause algal blooms in waterways, leading to oxygen depletion and eutrophication.
  • Fragrance: The ambiguous ingredient “fragrance” is ranked high hazard (8 out of 10) by the Environmental Working Group.43 Many fragrances are known toxins or allergens, cause contact dermatitis, disrupt the endocrine system, can cause respiratory disruption, exacerbates asthma, and can be highly toxic to aquatic life.

A green bar of natural, biodegradable soap leaning against an 8 Billion Trees box, on a white background.

Purchasing the Best Natural Soap

The decision to purchase the best natural soap depends on more than the ingredients list. The producer should also adhere to a strict environmental ethos and regard for social justice. This means ethical ingredient and labor sourcing, use of recycled or compostable packaging, and having their carbon footprint erased by using a tree planting offset offered by one of the best carbon offset providers out there. (Individuals can figure their emissions with an ecological footprint calculator.)

Finding the best all-natural, organic, biodegradable soap is an important step in reducing carbon footprint in everyday life. From cradle to grave, soap products contribute a surprising amount of social and environmental detriment, from CO2 emissions and deforestation to negative impacts on human and ecological health.

Replacing conventional soap with all-natural, biodegradable products may cost a bit more in the short term, but represents an investment in a world where soap doesn’t harm the planet. As a plus, the immediate health and environmental benefits of buying all-natural biodegradable soap is worth every extra penny.

Read More About Eco-Friendly Products:


1ASTM International. (2021). ASTM International. Retrieved May 27, 2021, from astm.org: https://www.astm.org/

2Greenbelly Meals. (2021).14 Best Biodegradable Soaps for the Outdoors for 2021. Retrieved May 27, 2021, from Greenbelly.co: https://www.greenbelly.co/pages/biodegradable-soap

3National Center for Biotechnology Information. (n.d.).Potassium hydroxide. Retrieved May 27, 2021, from pubchem.ncbi.nlm.nih.gov: https://pubchem.ncbi.nlm.nih.gov/compound/Potassium-hydroxide

4Scott, M. J., & Jones, M. N. (2000, February 9). The biodegradation of surfactants in the environment. Retrieved May 27, 2021, from core.ac.uk/: https://core.ac.uk/download/pdf/82334946.pdf

5Shapiro, J. (2018, July 31). An Easy Guide to Understanding Surfactants. Retrieved from ipcol.com: https://www.ipcol.com/blog/an-easy-guide-to-understanding-surfactants/

6Karsa, D. R., & Porter, M. R. (n.d.). Biodegradability of Surfactants. Retrieved May 27, 2021, from books.google.com.ph: https://books.google.com.ph/books?hl=en&lr=&id=047pCAAAQBAJ&oi=fnd&pg=PA1&dq=biodegradability+of+soaps+and+detergents&ots=H7n_-bosEV&sig=iZu3aJ1eSeirBVWiuWJ8RDY2t0s&redir_esc=y#v=onepage&q=biodegradability%20of%20soaps%20and%20detergents&f=false

7Science for Environment Policy. (2019, December 10). Consumer footprints for personal hygiene and cleaning products. Retrieved May 27, 2021, from ec.europa.eu: https://ec.europa.eu/environment/integration/research/newsalert/pdf/177na4_en.pdf

8Kolloen, S. (2018, January 24). Why Bar Soap Is Better For The Environment Than Liquid Soap. Retrieved May 27, 2021, from insteading.com: https://insteading.com/blog/bar-soap-better-liquid-soap/

9Merrettig-Bruns, U., & Jelen, E. (2009, February 4). Anaerobic Biodegradation of Detergent Surfactants. Retrieved May 27, 2021, from mdpi.com: https://www.mdpi.com/1996-1944/2/1/181/htm

10Environmental Working Group. (2021). EWG’s Skin Deep. Retrieved May 27, 2021, from ewg.org: https://www.ewg.org/skindeep/

11Ritschel, C. (2020, October 12). The Reason why palm oil is so controversial. Retrieved May 27, 2021, from Independent.co.uk: https://www.independent.co.uk/life-style/palm-oil-health-impact-environment-animals-deforestation-heart-a8505521.html

12World Wildlife Fund. (2021). Palm Oil. Retrieved May 27, 2021, from Worldwildlife.org: https://www.worldwildlife.org/industries/palm-oil

13Searle, S. (2018, June 6). Palm oil is the elephant in the greenhouse. Retrieved May 27, 2021, from theicct.org: https://theicct.org/blog/staff/palm-oil-elephant-greenhouse

14Union of Concerned Scientist. (n.d.). Palm Oil and Global Warming. Retrieved May 27, 2021, from ucsusa.org: https://www.ucsusa.org/sites/default/files/legacy/assets/documents/global_warming/palm-oil-and-global-warming.pdf

15Hunt, T. (2020, May 5). Palm Oil Free Soap. Retrieved May 27, 2021, from Ethicalconsumer.org: https://www.ethicalconsumer.org/palm-oil/soap-without-palm-oil

16Hunt, T. (2020, May 5). Palm Oil Free Shampoo. Retrieved May 28, 2021, from Ethicalconsumer.org: https://www.ethicalconsumer.org/palm-oil/palm-oil-free-shampoo

17Güçlü-Ustündağ, O., & Mazza, G. (n.d.). Saponins: properties, applications and processing. Retrieved May 28, 2021, from pubmed.ncbi.nlm.nih.gov: https://pubmed.ncbi.nlm.nih.gov/17453922/

18Wrobel, M. (2018, June 15).10 Best Biodegradable Laundry Detergents. Retrieved May 27, 2021, from Bestbabycares.com: https://bestbabycares.com/10-best-biodegradable-laundry-detergents/

19Seventh Generation Inc. (n.d.). How Our Products Save Petroleum. Retrieved May 27, 2021, from Seventhgeneration.com: https://www.seventhgeneration.com/blog/how-our-products-save-petroleum

20U.S Food and Drug. (n.d.). Allergens in Cosmetics. Retrieved May 28, 2021, from fda.gov: https://www.fda.gov/cosmetics/cosmetic-ingredients/allergens-cosmetics

21Robinson, M. K., Gerberick, F. G., & et al. (1999, December 20).The importance of exposure estimation in the assessment of skin sensitization risk. Retrieved May 28, 2021, from onlinelibrary.wiley.com: https://onlinelibrary.wiley.com/doi/epdf/10.1034/j.1600-0536.2000.042005251.x

22Centers for Disease Control and Prevention. (n.d.).Parabens Factsheet. Retrieved May 28, 2021, from cdc.gov: https://www.cdc.gov/biomonitoring/Parabens_FactSheet.html

23Environmental Working Group. (n.d.). PROPYLPARABEN. Retrieved May 28, 2021, from ewg.org: https://www.ewg.org/skindeep/ingredients/705335-PROPYLPARABEN/

24National Center for Biotechnology Information. (n.d.). Sodium dodecyl sulfate. Retrieved May 28, 2021, from pubchem.ncbi.nlm.nih.gov: https://pubchem.ncbi.nlm.nih.gov/compound/3423265

25FAQS. (n.d.).SODIUM LAURYL SULFATE. Retrieved May 28, 2021, from ewg.org: https://www.ewg.org/skindeep/ingredients/706110-SODIUM_LAURYL_SULFATE/

26Environmental Working Group. (n.d.).SODIUM LAURYL SULFATE. Retrieved May 27, 2021, from ewg.org: https://www.ewg.org/guides/substances/5605/

27National Center for Biotechnology Information. (n.d.). 2-Methyl-4-isothiazolin-3-one. Retrieved May 28, 2021, from pubchem.ncbi.nlm.nih.gov: https://pubchem.ncbi.nlm.nih.gov/compound/39800

28National Center for Biotechnology Information. (n.d.).5-Chloro-2-methyl-4-isothiazolin-3-one. Retrieved May 28, 2021, from pubchem.ncbi.nlm.nih.gov: https://pubchem.ncbi.nlm.nih.gov/compound/33344#section=Information-Sources

29Environmental Working Group. (n.d.). METHYLCHLOROISOTHIAZOLINONE. Retrieved May 28, 2021, from www.ewg.org: https://www.ewg.org/skindeep/ingredients/703924-METHYLCHLOROISOTHIAZOLINONE/#.WbbAr62ZNjs

30Environmental Working Group. (n.d.). METHYLISOTHIAZOLINONE. Retrieved May 28, 2021, from ewg.org: https://www.ewg.org/skindeep/ingredients/703935-METHYLISOTHIAZOLINONE/

31National Center for Biotechnology Information. (n.d.). Cocamidopropyl betaine. Retrieved May 28, 2021, from pubchem.ncbi.nlm.nih.gov: https://pubchem.ncbi.nlm.nih.gov/compound/20280

32National Center for Biotechnology Information. (n.d.).Sodium laureth sulfate. Retrieved May 28, 2021, from pubchem.ncbi.nlm.nih.gov: https://pubchem.ncbi.nlm.nih.gov/compound/23665884

33Centers for Disease Control and Prevention. (n.d.). 1,4-Dioxane. Retrieved May 28, 2021, from cdc.gov: https://www.cdc.gov/niosh/topics/1-4-dioxane/default.html

34National Toxicology Program. Department of Health and Human Resources. (n.d.). Report on Carcinogens, Fourteenth Edition. Retrieved May 28, 2021, from ntp.niehs.nih.gov: https://ntp.niehs.nih.gov/ntp/roc/content/profiles/dioxane.pdf

35Environmental Working Group. (n.d.). BENZALKONIUM CHLORIDE. Retrieved May 28, 2021, from ewg.org: https://www.ewg.org/skindeep/ingredients/700674-BENZALKONIUM-CHLORIDE/

36Uter, W., Lessmann, H., & et al. (n.d.).Is the irritant benzalkonium chloride a contact allergen? A contribution to the ongoing debate from a clinical perspective. Retrieved May 28, 2021, from pubmed.ncbi.nlm.nih.gov: https://pubmed.ncbi.nlm.nih.gov/18503686/

37Wentworth, A. B., Yiannias, J. A., & et al. (n.d.). Benzalkonium Chloride: A Known Irritant and Novel Allergen. Retrieved May 28, 2021, from pubmed.ncbi.nlm.nih.gov: https://pubmed.ncbi.nlm.nih.gov/26756511/

38Melin, V. E., Potineni, H., & et al. (n.d.). Exposure to common quaternary ammonium disinfectants decreases fertility in mice. Retrieved May 28, 2021, from Sciencedirect.com: https://www.sciencedirect.com/science/article/abs/pii/S0890623814001920

39National Center for Biotechnology Information. (n.d.). Triclosan. Retrieved May 28, 2021, from pubchem.ncbi.nlm.nih.gov: https://pubchem.ncbi.nlm.nih.gov/compound/5564

40U.S. Food and Drug Administration. (n.d.). Phthalates. Retrieved May 28, 2021, from fda.gov: https://www.fda.gov/cosmetics/cosmetic-ingredients/phthalates#health

41Environmental Working Group. (n.d.). POLYETHYLENE TEREPHTHALATE. Retrieved May 28, 2021, from ewg.org: https://www.ewg.org/skindeep/ingredients/704991-POLYETHYLENE_TEREPHTHALATE/

42Safe Household Cleaning. (2018, October 31).Phosphates in household cleaning products. Retrieved May 28, 2021, from Safehouseholdcleaning.com: https://www.safehouseholdcleaning.com/phosphates-cleaning-products

43Environmental Working Group. (n.d.). FRAGRANCE. Retrieved May 28, 2021, from ewg.org: https://www.ewg.org/skindeep/ingredients/702512-FRAGRANCE/

44Wikipedia. (n.d.).Lipid. Retrieved May 28, 2021, from wikipedia.org: https://en.wikipedia.org/wiki/Lipid

45Wikipedia. (n.d.).Soap. Retrieved May 28, 2021, from en.wikipedia.org: https://en.wikipedia.org/wiki/Soap

46Wikipedia. (n.d.). Sodium hydroxide. Retrieved May 28, 2021, from en.wikipedia.org: https://en.wikipedia.org/wiki/Sodium_hydroxide

47Wikipedia. (n.d.).Palmitic acid. Retrieved May 28, 2021, from en.wikipedia.org: https://en.wikipedia.org/wiki/Palmitic_acid

48Wikipedia. (n.d.). Exothermic process. Retrieved May 28, 2021, from en.wikipedia.org: https://en.wikipedia.org/wiki/Exothermic_process

49Materials Today. (2011).Ester Bond. Retrieved May 28, 2021, from sciencedirect.com: https://www.sciencedirect.com/topics/engineering/ester-bond

50ScienceDirect. (n.d.).Glycerols. Retrieved May 28, 2021, from Sciencedirect.com: https://www.sciencedirect.com/topics/engineering/glycerols

51Studies in Surface Science and Catalysis. (2020). Triglycerides. Retrieved May 28, 2021, from Sciencedirect.com: https://www.sciencedirect.com/topics/engineering/triglycerides

52Advances in Clinical Chemistry. (2014).Free Fatty Acid. Retrieved May 28, 2021, from Sciencedirect.com: https://www.sciencedirect.com/topics/engineering/free-fatty-acid

53ScienceDirect. (n.d.).Chemical Degradation. Retrieved May 28, 2021, from Sciencedirect.com: https://www.sciencedirect.com/topics/engineering/chemical-degradation

54Bioenergy Systems for the Future. (2017).Cell Disruption. Retrieved May 28, 2021, from Sciencedirect.com: https://www.sciencedirect.com/topics/engineering/cell-disruption

55Brown, H. S., Bishop, D. R., & et al. (2011, October 7). 20 The role of skin absorption as a route of exposure for volatile organic compounds (VOCs) in drinking water. Retrieved May 28, 2021, from ajph.aphapublications.org: https://ajph.aphapublications.org/doi/abs/10.2105/AJPH.74.5.479