Products are split into three levels based on ingredient labels
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Contains ingredients with possible health concernsSTOP
Contains harmful ingredientsSTOP
Kiehl's
Amino Acid Shampoo
Last verified: March 10, 2026
Shampoo
- Aqua / Water
- Sodium Methyl Cocoyl Taurate
- Sodium Coco-Sulfate
- Sodium Chloride
- Coco-Betaine
- Lactic Acid
- Parfum / Fragrance
- Ppg-5-Ceteth-20
- Sodium Lauroyl Glutamate
- Propylene Glycol
- PEG-55 Propylene Glycol Oleate
- Salicylic Acid
- Benzoic Acid
- Guar Hydroxypropyltrimonium Chloride
- Coconut Alcohol
- Sodium Sulfate
- Cocos Nucifera Oil / Coconut Oil
- Coumarin
- Wheat Amino Acids
- Fumaric Acid
- Hydroxypropyltrimonium Hydrolyzed Wheat Protein
- Phenoxyethanol
- Disodium Edta
- Potassium Sorbate
Why This Product is Rated STOP
Amino Acid Shampoo by Kiehl's has been evaluated by Million Marker and contains ingredients with known health concerns. This product is rated STOP, indicating higher concern.
We recommend avoiding STOP-rated products and seeking safer alternatives from our GO or SLOW categories.
Frequently Asked Questions
