Is Kérastase PFAS-free?
Across 11 graded products, Kérastase averages F (60/100). On disclosure, the brand says nothing publicly about PFAS. 5 of its products grade C or better. Grades are model-based estimates, not lab results.
Worth buying from Kérastase C or better, safest first
Kérastase
Kerastase Genesis Defense Thermique
water-based hair care formulation, silicones, conditioning agents
Lower-concern choice; typical cosmetic with no known PFAS indicators, though brand discloses nothing.
⚠Risky category by default
Kérastase
Gloss Absolu Anti Frizz Glaze Milk
Silicone and conditioning polymers (leave-in milk serum)
Lower PFAS concern; leave-in cosmetic milk with no apparent water/grease-repel chemistry.
⚠Risky category by default
Kérastase
Curl Manifesto Refresh Absolu
Aqueous gel/cream base with silicones, polymers, botanical extracts
Lower concern for typical use; no PFAS-prone chemistry known, but brand discloses nothing.
⚠Risky category by default
Kérastase
KERASTASE Volume in Powder Backcomb Effect Finishing Spray
Aerosol spray cosmetic (polymeric resins, propellants, conditioning agents)
Lower concern, cosmetic spray with no known PFAS use case, but no public disclosure from Kérastase.
⚠Risky category by default
Kérastase
Kerastase Spray A'Porter
Water-based aerosolized hair spray; propellants and polymeric resins typical to cosmetic formulations
Lower concern; typical cosmetic spray with no known PFAS risk signals, but brand makes no public commitment.
⚠Risky category by default
Graded and flagged D and F, we’d swap these
Kérastase
Discipline Fluidissime Anti Frizz Spray
aqueous emulsion spray (water, alcohols, polymeric resins, silicones, fragrance)
No public PFAS data; low inherent risk but limited transparency, choose with caution if PFAS-concerned.
⚠Risky category by default
Kérastase
Kerastase K Laque Extreme Triple Mist Diffusing Hairspray Extreme High Hold 9.0 oz / 255g
aerosol hairspray propellant and resins (unspecified)
Skip until brand clarifies propellant and resin composition; hairsprays historically use Teflon-type coating-based carriers.
⚠Risky category by default
Kérastase
Discipline Fluidissime Thermique Heat Protecting Luxury Spray - 150 ml
Water-based spray formula in aerosol or pump bottle
Lower PFAS risk than water-repellent apparel or nonstick cookware, but no brand transparency; proceed with caution on cosmetic sprays.
⚠Risky category by default
Kérastase
Kerastase Laque Couture
acrylate polymer spray lacquer with silicones
Skip unless you can confirm PFAS-free via Kérastase directly, hair lacquer waterproofing raises red flags.
⚠Waterproof or stain-proof treatment
Kérastase
KERASTASE Laque Extreme Hair Spray
aerosol hairspray with polymeric film-forming agents
Moderate concern, aerosol hairsprays often use fluorinated polymers for water/humidity resistance; Kérastase does not disclose PFAS use or avoidance.
⚠Waterproof or stain-proof treatment
Kérastase
Kerastase Nutritive Beautifying Detangling Blow Dry Mist (5.1 oz) - Hydration, Detangling, and Heat-Proofing in a Single Mist
aqueous spray formulation with silicone conditioning agents and heat-protective polymers
Skip until Kérastase discloses PFAS status; heat-proofing sprays commonly contain fluorinated water-repellents.
⚠Waterproof or stain-proof treatment
Every grade uses the same public rubric. How grades work →