Non-Toxic Shampoo: Ingredients to Avoid & What to Look For
Finding a non-toxic shampoo that cleans effectively without exposing you to harmful chemicals can be tricky. Many shampoos, even some labeled as “natural,” contain problematic preservatives, synthetic fragrances, and harsh surfactants. Below, we break down the key ingredients to avoid and what to look for in a truly safe, non-toxic shampoo.
Surfactants
Surfactants are the key ingredients that make shampoos (and all soaps and detergents) effective. They help water break down oil and dirt, allowing them to be rinsed away. However, not all surfactants are created equal—some are safe, while others come with health and environmental concerns.
Many conventional shampoos rely on harsh surfactants like sodium laureth sulfate (SLES) and, which can be irritating to the scalp and may contain harmful contaminants. Cocamide DEA is an actual carcinogen and should always be avoided. Unfortunately, some natural shampoos also use these questionable surfactants.
Safer Surfactants in Non-Toxic Shampoo
If you’re looking for a non-toxic shampoo, keep an eye out for gentler, biodegradable surfactants like:
- Decyl glucoside
- Lauryl glucoside
- Potassium cocoate
- Coco glucoside
- Sodium cocoyl isethionate
- Sodium lauroyl methyl isethionate
- Caprylyl/capryl glucoside
- Sodium lauroyl glutamate
The problem with these is that they tend not to lather as well as some of their more traditional (but less safe!) counterparts, so it can be hard to find high-performing, non-toxic shampoos that rely only on these surfactants.
Non-Toxic Shampoo Gray Area
One of the most confusing surfactants is cocamidopropyl betaine. While it can be safe and mild, it can sometimes be contaminated with harmful byproducts like nitrosamines (carcinogens) and 3-dimethylaminopropylamine (also known as DMAPA, and irritants). While derived from coconut oil, cocamidopropyl betaine is heavily processed and not as “natural” as some marketing suggests. Potential marine toxicity raise mild environmental concerns. Choosing a DMAPA-free, third-party-tested shampoo brand can help minimize these risks.
Similarly, while disodium laureth sulfosuccinate itself is considered a mild surfactant, it can be at risk of contamination due to ethoxylation. The best way to assess this is to look for certifications (EWG verified, ECOCERT, EU standards), transparency about purification methods, or labels that explicitly say “1,4-dioxane-free.”
Finally, cocamidopropyl hydroxysultaine has a low potential for skin, eye, or lung irritation. However, there are once again concerns about possible contamination with DMAPA and nitrosamines during its manufacturing process.
At Gimme the Good Stuff, we evaluate shampoos with cocamidopropyl betaine, disodium laureth sulfosuccinate, and cocamidopropyl hydroxysultaine on a case-by-case basis:
✅ If a brand discloses third-party testing or is verified by EWG, it may make our Best Stuff list.
⚠ If there’s no transparency about contamination risks, the product lands in Good Stuff or Okay Stuff, depending on its other ingredients.
Coco Betaine in Non-Toxic Shampoo
Some brands use coco betaine instead of cocamidopropyl betaine. Coco betaine is a milder, less processed alternative that is less likely to cause irritation or contain impurities. It can, however, potentially irritate very sensitive skin, so if you have allergies, eczema, or rosacea, it’s best to patch-test first.
249 comments
Halyna
Can you also recommend a safe conditioner?
Sarah
And I’ve using ten pure coconut milk shampoo I think that’s what it’s called.
Sarah
Really fine hair
Sarah
I have fine hair, and lately it’s been brittle feeling, and Strands of my hair fall out.. My hair tends to get oily, I have been using shampoos that make it a bit more oily I try to get the most hydrating. I’ve heard of using acure, and what about 2chic line I know their conditioner isn’t as good, I try to stay away from conditioner anyways.
Lu Ann
Newby here. Can you please tell me if these ingredients are good or bad?
Diane
Monat ingredients: Water (Aqua), Lauramidopropyl Betaine, Sodium C14-16 Olefin Sulfonate, Sodium Methyl Cocoyl Taurate, Sodium Cocoamphoacetate, Cinnamidopropyltrimonium Chloride, Stearyldimoniumhydroxypropyl Decylglucosides Chloride, Fragrance (Parfum), Guar Hydroxypropyltrimonium Chloride, Pisum Sativum (Pea) Extract, Acetyl Tetrapeptide-3, Trifolium Pratense (Clover) Flower Extract, Limnanthes Alba (Meadowfoam) Seed Oil, Crambe Abyssinica Seed Oil, Camellia Oleifera Seed Oil, Solanum Lycopersicum (Tomato) Seed Oil, Daucus Carota Sativa (Carrot) Seed Oil, Citrus Limon (Lemon) Peel Oil, Citrus Aurantifolia (Lime) Oil, Citrus Aurantium Bergamia (Bergamot) Fruit Oil, Adansonia Digitata Oil, Mauritia Flexuosa Fruit Oil, Cocos Nucifera (Coconut) Oil, Gardenia Tahitensis Flower Extract, Moringa Oleifera Seed Oil, Caryocar Brasiliense Fruit Oil, Helianthus Annuus (Sunflower) Seed Oil, Glycerin, Dextran, Citric Acid, Cocamidopropyl Hydroxysultaine, Propanediol, Glycol Distearate, Sodium Hydroxypropylphosphate Decylglucoside Crosspolymer, Lauramide MIPA, Sodium Hydroxypropylphosphate Laurylglucoside Crosspolymer, Cocamidopropyl Betaine, Butylene Glycol, Amodimethicone, Trideceth-12, Cetrimonium Chloride, Benzoic Acid, Caprylyl Glycol, Benzyl Alcohol.
Cathleen
I came across your site as I was searching for a clean shampoo and conditioner after having used Aveda for a long time. I’m disappointed with Aveda’s ingredient list and was considering John Masters shampoo. However, when I went to the John Master’s website, I saw they use sodium benzoate in their shampoo….you mentioned above they did not, so I was disappointed to see it there. I am ready to change shampoos, but am unsure of what product is completely free of harmful chemicals/toxins.
Rod Hall
You are eating sodium benzoate as a preservative in many packaged foods – probably not nearly as big a concern putting it on your hair and washing it off. As the article noted “food grade”, so that is why it is on the “good” list.
Sue d
Hi everyone. I’m a 60 year old mom of 3 and grandmother of 5. I have been recently diagnosed with contact dermatitis mainly allergic to formaldehyde and methylchoroisothaizolinone. I am desperately seeking shampoos, conditioners, liquid soaps, cosmetics, and household products (clothing detergent, dryer sheets, etc) that I can use without these 2 preservatives. It’s very difficult as i am so unfamiliar with this process and am having difficulty locating them on line. Can anyone help? So much to learn and so hard to deal with the pain of the dermatitis as it is on my hands. Luckily my husband does most of the cleaning and dishes but love to cook and entertain but has taken all the pleasure out of it. Wearing gloves doesn’t really help much. I appreciate anyone’s advice!!!!
Jennifer
This is all so informative. Thank you! I’d love to know what you use in the summer, when swimming becomes a regular routine (and a daily one for my child). There are so many swimmer’s shampoos but I’m not sure how safe they are. On the other end, I wouldn’t want a shampoo that may be natural, but doesn’t get out the chlorine.