Top 6 Best Non-Toxic Shampoo & Conditioner
6 products independently rated for safety, effectiveness, and value, ranked and reviewed by PollutionProfile.
Most shampoos contain sulfates that strip your scalp's natural oils, plus synthetic fragrance, parabens, and silicones that build up and block the follicle over time. We rated 6 of the best non-toxic natural shampoos on EWG Verified status, cleaning performance, and long-term scalp health. Great hair shouldn't require a long list of questionable ingredients.
10-Year Health Impact
Shampoo is the #1 source of 1,4-dioxane exposure for most Americans.
estimated life gained
in health value
Exposure, primary risk & chemicals modeled
Primary risk
1,4-dioxane in shampoos, synthetic fragrance, parabens
SLS-free, fragrance-free, paraben-free hair care reduces 1,4-dioxane scalp exposure by ~95% and eliminates synthetic fragrance phthalate absorption.
Chemicals addressed
- 1,4-Dioxane (from sodium laureth sulfate ethoxylation)
- Synthetic fragrance (phthalates, synthetic musks)
- Parabens (methylparaben, propylparaben)
- Dimethicone and silicone accumulation
- Formaldehyde-releasing preservatives (DMDM hydantoin)
Health outcomes
- Reduced 1,4-dioxane carcinogen body burden
- Lower phthalate and paraben endocrine disruptor exposure
- Healthier scalp microbiome
- Reduced scalp sensitization and dermatitis
The math, step by step
Study Benchmark
1,4-dioxane found in 65% of conventional shampoos and conditioners tested
EWG analysis (2021); 1,4-dioxane is EPA probable carcinogen Group B2, detectable in NHANES blood samples
Exposure Pathway
Scalp absorbs chemicals 3–4× more readily than forearm skin
Maibach et al. (1971); plus synthetic fragrance adds >100 chemical compounds including phthalates per wash
10-Year Calculation
1,4-dioxane scalp absorption + fragrance phthalate exposure × 10 years daily use ≈ 10 life-days
Central estimate; rinse-off products have lower retention than leave-ons
Economic Value
10 days × $411/day = $4,110
EPA VSLY methodology; $411/life-day
How we score this category
Effectiveness
Cleansing ability, lather, and scalp health outcomes rated. Sulfate-free formulas reviewed for equivalent cleansing using gentler surfactants (coco-glucoside, decyl glucoside).
Safety
Free of 1,4-dioxane (verified by testing or EWG certification), synthetic fragrance, and parabens. No formaldehyde-releasing preservatives. Essential-oil fragrance disclosed fully.
Affordability
Cost per wash normalized to a standard dose. Many clean hair care products are concentrated, so compare wash-count rather than bottle price.
Certifications
EWG Verified, Made Safe, USDA Certified Organic, or COSMOS/ECOCERT certification for natural formulas.
Life-days and economic value are population-level estimates based on peer-reviewed epidemiology using EPA Value of Statistical Life Year methodology (~$150K/year). Individual results vary based on baseline exposure, location, and health status. Not medical advice.
Acure
Top PickFragrance Free Shampoo
Rating breakdown
EWG Verified, vegan, cruelty-free, no parabens, no sulfates
What we love: I love this shampoo because not only will your hair feel smooth and clean, but knowing that this company is vegan, cruelty free and climate neutral certified will also help your conscience. Your hair will thank you for a clean wash without parabens, sulfates, mineral oil, petrolatum, and formaldehyde. Clean ingredients, clean results.
Arianna Lescalleet · PollutionProfile reviewer
Customers say: Customers find this clarifying shampoo effective at removing buildup and dandruff, with good lather that leaves hair smooth and shiny. They appreciate its natural ingredients, vegan formula, and pleasant fragrance, while also considering it good value for money. Regarding greasiness, while some find it great for oily hair, others report it makes their hair too oily.
Boldy Basics
Fragrance Free Shampoo
Rating breakdown
Fragrence Free, no sulfates, BPA free
What we love: My favorite thing about this shampoo is that it is dermatologist tested to feel great on your hair without irratating your skin. It is fragrance-free, toxin-free, hypoallergenic, BPA-free, gluten-free, and free of any animal testing. Good for house wide use.
Arianna Lescalleet · PollutionProfile reviewer
Customers say: NA
SheaMoisture
100% Virgin Coconut Oil Daily Hydration Shampoo
Rating breakdown
Fair Trade coconut oil, Leaping Bunny, no sulfates
What we love: A classic, easy to find shampoo with a focus on hydration. Good for all hair types.
Arianna Lescalleet · PollutionProfile reviewer
Customers say: Customers find this shampoo to be of good quality, with an amazing fragrance and soft, silky texture. The product effectively nourishes and moisturizes hair, particularly noting its benefits for curly hair and scalp care. While many customers appreciate that it's not heavy, some find it too heavy for fine hair, and there are mixed experiences with cleanliness - some say it leaves hair clean while others report a horrible residue. Customers disagree on whether it makes hair greasy.
Avalon Organics
Biotin B-Complex Thickening Shampoo
Rating breakdown
EWG CertifiedNSF/ANSI 305 certified natural, no parabens, no synthetic fragrance
What we love: This shampoo is a personal favorite because it supports an engerized scalp and thicker, fuller hair. It always makes me feel my best using products that are EWG certifed, vegan, and filled with organic ingredients
Arianna Lescalleet · PollutionProfile reviewer
Customers say: Customers find this shampoo effective and appreciate its lovely fragrance, noting it leaves hair feeling clean without stripping it. The product makes hair feel soft and silky smooth, and customers consider it good value for money. While some customers report their hair becomes thicker and fuller, others mention it can be too drying.
100% Pure
Kelp & Mint Volumizing Shampoo Purifying Deep Detox
Rating breakdown
COSMOS certified organic, fruit-pigmented formulas, Leaping Bunny, no synthetic fragrance
What we love: This shampoo has made my hair feel hydrated while also making my scalp feel clean and healthy. My hair was shiny and smooth after use and I loved the non-sulfate recipe.
Arianna Lescalleet · PollutionProfile reviewer
Customers say: NA
Ursa Major
Go Easy Shampoo
Rating breakdown
EWG Verified, free of 1,4-dioxane, all 73 harmful chemicals on brand's Never List
What we love: This nourishing and fragrance free formula helped my hair feel hydrated and made my scalp feel healthy. I love that it has ingredients that you can pronounce, without all the unneeded sulfates.
Arianna Lescalleet · PollutionProfile reviewer
Customers say: Customers find this shampoo effective at cleaning without stripping hair, with good lather and leaving it soft. They appreciate its lightweight formula that doesn't weigh hair down, and consider it the best they've used. The scent receives mixed reactions, with some finding it great while others note it's very potent. Value for money opinions are divided between those who find it expensive but good and those who think it's not worth the price.
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