Products are split into three levels based on ingredient labels
K18 BIOMIMETIC HAIRSCIENCE
Leave-In Molecular Repair Hair Mask
Last verified: March 9, 2026
- Water (Aqua) (Eau)
- Alcohol Denat.
- Propylene Glycol
- Cetearyl Alcohol
- Dicaprylyl Ether
- Cetyl Esters
- Behentrimonium Chloride
- Polysorbate 20
- sh-Oligopeptide-78 (K18Peptide)
- Hydrolyzed Wheat Protein
- Hydrolyzed Wheat Starch
- Isopropyl Alcohol
- Tocopherol
- Phenoxyethanol
- Potassium Sorbate
- Citric Acid
- Fragrance (Parfum)
- Geraniol
- Linalool
- Hexyl Cinnamal
- Benzyl Alcohol
Why This Product is Rated STOP
Leave-In Molecular Repair Hair Mask by K18 BIOMIMETIC HAIRSCIENCE 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
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