Kerastase Review, Is Kerastase Non-Toxic?
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Across 8 graded products, Kerastase averages Excellent (75/100). On disclosure, the brand says nothing publicly about PFAS. 8 of its products grade Good or better. Grades are model-based estimates, not lab results.
Does Kerastase have PFAS, by category
Worth buying from Kerastase Good or better, safest first
Kerastase
Kérastase Nutritive Bain Satin Riche Shampoo
Aqueous liquid shampoo base (surfactants, humectants, conditioning agents)
1,4-dioxane (manufacturing contaminant)
Dioxane can form during ethoxylation of surfactants in shampoo manufacture. No reported…
Fragrance allergens and undisclosed components
Shampoo contains fragrance (listed as 'parfum'), which may include unlisted allergens…
Scalp and eye irritation from anionic surfactants
Anionic surfactants (primary cleaning agents in most shampoos) are mild but can irritate…
Formaldehyde / VOCs
Some shampoos use methylchloroisothiazolinone or similar preservatives; Kérastase does…
Low-medium concern; no known PFAS use triggers without brand public commitment.
⚠Risky category by default
Kerastase
Resistance Bain Force Architecte Shampoo
aqueous liquid shampoo (surfactants, water, conditioning agents)
Fragrance allergens and undisclosed scent components
Kerastase lists 'fragrance' as a blend ingredient but does not itemize components. Common…
1,4-dioxane contamination in surfactant supply
Anionic surfactants used in shampoos may be contaminated with 1,4-dioxane as a…
Hair and scalp irritation from conditioning buildup
Silicone and polymer conditioners in this formula can accumulate on hair shaft and scalp…
Low-medium concern; rinse-off shampoo has no known PFAS triggers but lacks transparency.
⚠Risky category by default
Kerastase
Chronologiste Bain Régénérant Shampoo
aqueous surfactants, conditioning agents, preservatives, typical liquid shampoo formulation
Preservative allergens (contact sensitization)
Aqueous shampoos require broad-spectrum preservatives (typically methylisothiazolinone…
Fragrance undisclosed components (respiratory/skin sensitization)
This product contains fragrance compounds listed only as 'parfum' on labels; EU…
Microplastics
Liquid shampoos rarely contain intentional microbeads, but conditioning polymers…
Low-medium concern; shampoo formulations rarely need PFAS without public disclosure.
⚠Risky category by default
Kerastase
Kérastase Gloss Absolu Bain Hydra Glaze Shampoo
aqueous surfactant-based shampoo formulation
Fragrance allergens and sensitizers
Kerastase shampoos contain fragrance compounds; individual sensitivity varies widely. No…
Scalp irritation from sulfate surfactants
Kerastase premium shampoos typically use sulfate-free or mild surfactant blends to…
Low-medium concern; no aqueous shampoo chemistry typically requires fluorochemicals.
⚠Risky category by default
Kerastase
Kérastase Genesis Bain Hydra-Fortifiant Shampoo
aqueous shampoo base, silicones, botanical extracts
Fragrance allergens (undisclosed composition)
Kerastase formulations typically include fragrance blends listed only as 'parfum' on…
Silicone buildup on scalp
Repeated use without clarifying shampoo can lead to cosmetic silicone accumulation…
Eye or mucous-membrane irritation
Shampoos are not formulated for ocular safety; contact with eyes can cause mild stinging…
Lower PFAS concern for standard shampoo, but brand lacks transparency.
⚠Risky category by default
Kerastase
Chroma Absolu Bain Riche Chroma Respect Shampoo
aqueous shampoo base; polymers, silicones, and conditioning agents typical of luxury haircare
Fragrance allergens and undisclosed components
Luxury shampoos typically include fragrance blends listed only as 'parfum' on label…
Silicone and polymer buildup on hair
Repeated use of silicone-heavy shampoos can deposit residue on hair shaft, reducing…
Heavy metals
Some color-care shampoos include plant extracts (e.g., flax, grape) that may…
Lower concern for liquid shampoo with no known PFAS triggers.
⚠Risky category by default
Kerastase
Nutritive Bain Satin Riche Shampoo 8.5 oz
aqueous shampoo base (water, surfactants, conditioning agents)
Fragrance allergens
Kerastase shampoos contain synthetic fragrance blends not fully disclosed on label due to…
1,4-dioxane contamination
This surfactant-based shampoo may contain trace 1,4-dioxane as a byproduct of…
Lower PFAS concern for this rinse-off product.
⚠Risky category by default
Kerastase
Chronologiste Bain Regenerant Shampoo
aqueous shampoo base, typical cosmetic actives
Fragrance allergens and sensitizers
Kerastase Chronologiste lists 'fragrance' as a declared ingredient. Prestige shampoos…
1,4-dioxane (preservation by-product)
Aqueous shampoos may contain trace 1,4-dioxane as a secondary by-product of ethoxylation…
Lower PFAS concern for rinse-off shampoo, though brand lacks transparency.
⚠Risky category by default
Every grade uses the same public rubric. How grades work →