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Best Non-Toxic Bar Soap in 2025
Updated:
Aug 28, 2025
Written by Camille May
Cofounder & Product Curator
+ 1 more
Medically reviewed by Olushola Awoyemi
PhD Environmental Toxicology
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What we look for:
- Thoughtful formulas made with natural or safe synthetic ingredients
- Free from parabens, PEGs, phthalates, harsh sulfates, BHA/BHT, artificial dyes, formaldehyde-releasing ingredients, and undisclosed synthetic fragrance (unless certified safe)
- Minimal, well-chosen preservatives
- Trusted third-party certifications when available
- Transparent sourcing, ingredient lists, and manufacturing practices
Find Non-Toxic Bar Soap
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Unscented Goat Milk Soap - Honey Sweetie Acres
Welpr Rating
4.9
/5
Certifications
Third-party certifications are key indicators of a product's safety, ethics, and environmental impact. Click the icon to verify the certification.
Highlights
Highlights aren't always verifiable, so you're trusting the brand when they say "lead free", etc. If the highlight icon is "clickable", it means we've verified the highlight.
User Satisfaction
User satisfaction is calculated using online reviews and a Bayesian average across all personal care and cosmetic products on Welpr.
Est. Price
$9.52
Product Details
- Creamy goat milk lather leaves skin feeling soft and moisturized.
- Made with fresh goat milk for a rich and nourishing experience.
- Specially crafted for a mild cleanse, suitable for sensitive skin.
- Free from parabens, phthalates, and formaldehyde for a safe cleanse.
- Eco-friendly with responsibly sourced, high-quality ingredients.
Pros & Cons
Pros
- Excellent for sensitive and eczema-prone skin, with many users experiencing improvements.
- Subtle and pleasant fragrance that lasts without being overpowering.
- Lathers well and leaves skin feeling moisturized and clean.
- Free from harsh chemicals, using goat's milk and high-quality ingredients.
- Effective for both adults and infants, proving gentle on delicate skin.
Cons
- Soap bars may be smaller than expected, which some users find doesn't last long enough.
- Users with extremely sensitive skin may find it too hard or experience breakouts.
Ingredients
Ingredients can vary by product variation and may change at any time by the manufacturer. For the most complete and up-to-date list of ingredients, refer to the product packaging.
To analyze individual ingredients, use INCIDecoder.
Ingredients: Organic Olea Europaea (Olive) Oil, Organic Cocos Nucifera (Coconut) Oil, Organic Eleais Guineensis (Palm Fruit) Oil, Raw Goat Milk, Sodium Hydroxide (Reagent), Ricinus Communis (Castor) Seed Oil, Organic Theobroma Cacao (Cocoa) Seed Butter, Organic Butyrospermum Parkii (Shea Butter) Fruit, Honey, Tocopherol (Vitamin E)
Milk + Honey Soap Bar - Pretty Farm Girl
Welpr Rating
4.85
/5
Certifications
Highlights
User Satisfaction
Est. Price
$8.99
Product Details
- Made with premium tallow, nourishing goat milk, and soothing honey for a gentle and moisturizing cleanse.
- Rich, creamy lather cleanses without stripping away natural oils, keeping skin soft and hydrated.
- Handcrafted in small batches to preserve ingredient integrity and ensure consistent quality.
- Free from synthetic fragrances, dyes, and preservatives for a gentle and safe skincare experience.
- Ideal for supporting sensitive, psoriasis, and eczema-troubled skin.
Pros & Cons
Pros
- Keeps skin soft and hydrated, great for dry skin.
- Light, pleasant scent with an invigorating aroma.
- Nourishing natural ingredients like tallow and goat milk.
- Lathers luxuriously for a silky, smooth shower experience.
- Avoids toxic additives for health-conscious users.
Cons
- Some users might find the bar size a bit small and prefer larger options.
Ingredients
Ingredients: Organic Grass-Fed Tallow, Goat Milk & Goat Milk Kefir, Raw Local Honey
Pure Beef Tallow Soap Bar - Prairie Fire
Welpr Rating
4.85
/5
Certifications
Highlights
User Satisfaction
Est. Price
$26.99
Product Details
- Made with simple and organic grass-fed tallow and distilled water.
- Rich in vitamins A, D, E, K, and B12 for nourishing care.
- Free from chemicals, dyes, and synthetic fragrances for a natural clean.
- Contains omega fatty acids that help nutrients penetrate the skin.
- Handmade with traditional methods, ensuring a pure, natural soap.
Pros & Cons
Pros
- Leaves skin feeling soft and hydrated.
- Free of harsh chemicals, perfect for sensitive skin.
- Rich, natural lather that cleanses effectively.
- Minimal to no scent, appealing to those sensitive to fragrances.
- Made with pure, clean ingredients like saponified tallow and distilled water.
Cons
- Some users with extreme sensitivity might still experience reactions.
- The orange scent may be too subtle for those looking for a strong fragrance.
Ingredients
Ingredients: Saponified Triple Rendered Pure Native Grass Fed / Finished Tallow, Distilled Water
The Everything Bar - Toups & Co
Welpr Rating
4.8
/5
Discount Code
Save 10% on purchases on Toups & Co via our link.
No code needed
Certifications
Highlights
Est. Price
$19.00
Product Details
- Cleanses and hydrates hair, skin, and body with a single minimal formula.
- Made with organic coconut oil to nourish and lock in moisture.
- Infused with organic grapefruit essential oil for a light, refreshing scent.
- Offers natural antibacterial and anti-inflammatory benefits.
- Leaves skin feeling soft, balanced, and free from harsh ingredients.
Pros & Cons
Pros
- Creates a rich lather that feels luxurious and rinses off easily.
- Leaves skin feeling clean, hydrated, and refreshed without dryness.
- Fresh, natural scent that’s enjoyed by both women and men.
- Suitable for sensitive skin and versatile for multiple uses.
- A favorite for those seeking a truly clean, non-toxic bar soap.
Cons
- Some users wish it came in a larger size to last longer.
Ingredients
Ingredients: Organic Virgin Coconut Oil, Organic Grapefruit Essential Oil
Handcrafted Bar Soap (3 Pack) - Humble Brands
Welpr Rating
4.75
/5
Certifications
Highlights
User Satisfaction
Est. Price
$25.12
Product Details
- Made with plant-based whole oils using cold process to maintain benefits and potency.
- Biodegradable and free from triclosan, sulfates, parabens, synthetic fragrances.
- Certified cruelty-free and gentle enough for the entire family.
- Extra gentle unscented formula suitable for the most sensitive skin.
- Creates a rich lather that is enjoyable for all ages.
Pros & Cons
Pros
- Made with clean, non-toxic ingredients to match a health-conscious lifestyle.
- Great for sensitive skin, offering moisturizing and soothing properties.
- Provides a rich lather with delightful scents that many love.
- Some fragrance-free options available for those who prefer unscented products.
- Highly recommended by users for its gentle and effective cleansing.
Cons
- Some users felt certain bars could use a stronger, more lasting scent.
- A few found the soap dissolves faster than other brands, which may not suit those looking for longer-lasting options.
Ingredients
Ingredients: Organic Shea Butter, Organic Olive Oil, Organic Coconut Oil, Organic Sunflower Seed Oil, Organic Palm Oil
Our Product Rating System
First, Camille (co-creator of Welpr) hand picks cleaner product options from a variety of sources.
Next, we collect information about each product's safety, consumer satisfaction, and eco-ethical standing.
Finally, we run all this information through an algorithm that calculates the Welpr Rating.
Welpr Rating:
5.0/5
Part 1: Product safety
We evaluate safety information from 3rd party organizations (e.g. EWG, Made Safe, etc.). Instead of relying solely on any one of these companies for safety information, we assess all of them.
Part 2: Consumer satisfaction
We scour the web for consumer ratings and reviews to verify products are not only cleaner options, but also effective. Products can either be Above Average, Average, or Below average for their respective category (e.g. cleaning products).
Part 3: Ethics & Environment
When you buy a product, you’re supporting that company with your dollars. We believe it’s important to support ethical companies, so we pool together certifications that verify a company's ethics and environmental impact.
Common Harmful Chemicals in Bar Soap
Chemical Name
Why it’s harmful
Formaldehyde
Formaldehyde is a colorless, flammable gas with a pungent smell that's naturally produced in small quantities in human bodies and is also known as methanal amongst other names. It's used in the production of various items such as fertilizers, paper, plywood, and urea-formaldehyde resins as well as in some foods and household products like antiseptics, medicines, and cosmetics. Exposure to formaldehyde, which can occur through breathing contaminated indoor air, tobacco smoke, or ambient urban air can lead to respiratory symptoms, irritation of the eyes, nose and throat and has been linked to lung and nasopharyngeal cancer as well as leukemia. The EPA considers formaldehyde a probable human carcinogen (Group B1) and inhaling it can cause bronchospasm and pulmonary edema. Commercially, it's sold as formalin in solutions of 37%, 44%, or 50% and long-term exposure can cause first-degree burns, skin sensitization, squamous cell nasal cancer, and chronic pulmonary obstruction.
Sources:
Formaldehyde and Cancer Risk, Cleaning Products & Indoor Air Quality, No More Toxic Tub, Campaign for Safe Cosmetics: Preservatives, Campaign for Safe Cosmetics: Formaldehyde And Formaldehyde-Releasing Preservatives, Formaldehyde may be found in cosmetic products even when unlabelled, Formaldehyde Found in Popular American Beauty Products, Hair Salons - Formaldehyde in Your Products, Formaldehyde in cosmetic products
Phthalate
Phthalates, linked to endocrine disruption, reproductive toxicity, and cancer, are banned in the European Union but remain prevalent in U.S. cosmetics. They are widely used in personal care products, such as nail polish, fragrances, and eyelash glue and other products. A significant loophole allows phthalates to be added to fragrances without disclosure. Health concerns include endocrine disruption, developmental and reproductive toxicity, and potential carcinogenicity.
Sources:
Campaign for Safe Cosmetics: Phthalates, Product Profile: Hand Sanitizer, Phthalates in Cosmetics, Phthalates in cosmetic and personal care products: concentrations and possible dermal exposure, A Survey of Phthalates and Parabens in Personal Care Products from the United States and Its Implications for Human Exposure, Phthalates Factsheet, BPA and Phthalates: Chemicals found in our homes
1,4-Dioxane
1,4-Dioxane is a clear, water-soluble liquid that is primarily used as a solvent in chemical manufacturing and laboratory reagents. Other uses leverage its solvent properties, including cosmetics, detergents, and shampoos. However, manufacturers generally reduce 1,4-Dioxane to low levels in these products due to its potential health risks. Acute exposure can result in symptoms such as vertigo, drowsiness, and irritation of the eyes, nose, throat, and skin. Chronic exposure may lead to liver and kidney damage, and the substance is classified as a probable human carcinogen by the EPA. Notably, severe kidney and liver damage, CNS effects, and even death have been recorded after heavy or prolonged exposure.
Sources:
What Is 1,4-Dioxane in Laundry and Cleaning Products?, Effect of ethoxylation and lauryl alcohol on the self-assembly of sodium laurylsulfate: Significant structural and rheological transformation, Final Risk Evaluation for 1,4-Dioxane, Ongoing and Completed Chemical Risk Evaluations under TSCA, Preliminary Information on Manufacturing, Processing, Distribution, Use, and Disposal, TOXICOLOGICAL REVIEW OF 1,4-DIOXANE, 15th Report on Carcinogens, 1,4-Dioxane, Determination of residual 1,4-dioxane in surfactants and cleaning agents using headspace single-drop microextraction followed by gas chromatography–flame ionization detection, 1,4-Dioxane in Cosmetics: A Manufacturing Byproduct, An integrated assessment of the 1,4-dioxane cancer mode of action and threshold response in rodents, Campaign for Safe Cosmetics: 1,4-DIOXANE, Product Profile: Hand Sanitizer, Occurrence of 1,4-dioxane in cosmetic raw materials and finished cosmetic products, Chemical Profile: 1,4-dioxane
Triclosan
Triclosan is a synthetic pesticide with antibacterial properties commonly added to detergents, soaps, and various personal care products such as deodorants and toothpastes. Although it lacks the ability to combat viruses causing colds and flus, it's used in products like body washes, disinfectants, and some toothpastes to resist bacterial growth. In 2016, the FDA limited its use in antibacterial soaps, but the compound is still permitted in other products. The European Union prohibited its presence in food-contact items in 2010. Exposure to triclosan has been associated with hormone disruption, increased breast cancer risk, liver damage, and the development of resistant super-germs.
Sources:
Triclosan Exposure, Transformation, and Human Health Effects, Are antibacterial products with triclosan fueling bacterial resistance?, Antimicrobial agents, triclosan, chloroxylenol, methylisothiazolinone and borax, used in cleaning had genotoxic and histopathologic effects on rainbow trout, The Effects of Triclosan on Puberty and Thyroid Hormones in Male Wistar Rats, Triclosan is a potent inhibitor of estradiol and estrone sulfonation in sheep placenta, The in Vitro estrogenic activities of triclosan and triclocarban, Antibacterial Soap? You Can Skip It, Use Plain Soap and Water, Environmental Exposure of Aquatic and Terrestrial Biota to Triclosan and Triclocarban, Triclosan: Environmental Fate and Effects, Chemical Profile: Triclosan / Triclocarban, 5 Things to Know About Triclosan, Underarm Harm? Whats So Bad About Antiperspirants?, Some flame retardants and the antimicrobials triclosan and triclocarban enhance the androgenic activity in vitro, Triclocarban Enhances Testosterone Action: A New Type of Endocrine Disruptor?, Triclosan, a commonly used bactericide found in human milk and in the aquatic environment in Sweden
Methylisothiazolinone
Methylisothiazolinone can reportedly cause allergic contact dermatitis in workers who interact with products containing it. This substance is recognized as a contact allergen for consumers using cosmetics that include it. It can cause skin burns and sensitization, and inhaling it may lead to corrosive injuries in the upper respiratory tract and lungs. Ingesting this substance is harmful, and inhalation is toxic. This preservative is linked to the category of isothiazolinones.
Sources:
Antimicrobial agents, triclosan, chloroxylenol, methylisothiazolinone and borax, used in cleaning had genotoxic and histopathologic effects on rainbow trout, Methylisothiazolinone toxicity and inhibition of wound healing and regeneration in planaria, Methylchloroisothiazolinone and/or methylisothiazolinone in cosmetic products, Isothiazolinone Biocides: Chemistry, Biological, and Toxicity Profiles, Methylisothiazolinone and isothiazolinone allergy, Analysis of isothiazolinones in environmental waters by gas chromatography–mass spectrometry, Methylisothiazolinone induces apoptotic cell death via matrix metalloproteinase activation in human bronchial epithelial cells, EU REGULATIONS , Methylisothiazolinone contact allergy: a review, Effects of methylisothiazolinone and octylisothiazolinone on development and thyroid endocrine system in zebrafish larvae, Two Cases of Chloromethylisothiazolinone and Methylisothiazolinone-associated Toxic Lung Injury, An update of the risk assessment for methylchloroisothiazolinone/methylisothiazolinone (MCI/MI) with focus on rinse-off products, Effects of a mixture of chloromethylisothiazolinone and methylisothiazolinone on peripheral airway dysfunction in children, Isothiazolinone preservative: cause of a continuing epidemic of cosmetic dermatitis, Campaign for Safe Cosmetics: Methylisothiazolinone and Methylchloroisothiazolinone
Sodium Lauryl Sulfate
Sodium Lauryl Sulfate is recognised as a skin, eye, and respiratory tract irritant according to ICSC. It may cause allergic reactions and eye irritation as stated by the HSDB. Exposure may even result in eye burns, as per CAMEO. Depending on its form - which may range from a solid (90-98% purity), to a paste (30-41%), or an aqueous solution (28-50%) - it can significantly irritate skin and eyes, with adverse effects escalating with increased concentration. Despite these hazards, it is not a skin sensitizer according to CHEMINFO, while eChemPortal: ERMA and MSDSonline endorse its classification as an irritant.
Authors
Camille May, Product Curator
Olushola M. Awoyemi, Medical Reviewer
