Kérastase Genesis Heat Protecting Leave-In Treatment for Weakened Hair
by Kérastase · hair_care
Editor's Take
For hot-tool days, this earns its salon shelf space with Xylose and Keravis™, but clean-beauty shoppers will clock the silicone-and-fragrance baggage fast.
Four-pillar formula scores
- Efficacy: 8.4 / 10
- Modern Tech: 7.5 / 10
- Clean Beauty: 2.1 / 10
- Sustainability: 3.5 / 10
The Verdict
Performance is the strong hand here: it lands in the Strong Efficacy band and the Modern Technology band, with Xylose for heat shielding and Keravis™ for anti-breakage support. Amodimethicone and Polyquaternium-37 give the smooth, coated feel that makes blow-drying easier on weakened hair. The trade-off is clear: Phenoxyethanol, PPG-1 Trideceth-6, persistent silicones, and fragrance allergens pull the clean profile way down. A credible salon heat-protecting leave-in, not a clean-leaning treatment.
Full INCI list
Water, Coconut Oil, Amodimethicone, Polyquaternium-37, Phenoxyethanol, Propylene Glycol Dicaprylate/Dicaprate, Xylitylglucoside, Sodium Hydroxide, Anhydroxylitol, Xylitol, Dimethicone Peg-7 Phosphate, PPG-1 Trideceth-6, Trideceth-6, Behentrimoniumchloride, Limonene, Xylose, Ethylhexylglycerin, Sorbitan Oleate, Linalool, Isopropyl Alcohol, Cetrimonium Chloride, Glycerin, Hydrolyzed Vegetable Protein PG-Propyl Silanetriol, Benzyl Salicylate, Coumarin, Zingiber Officinale Root Extract/Ginger Root Extract, Citral, Benzyl Alcohol, Citronellol, Benzyl Benzoate, Leontopodium Alpinum Callus Culture Extract, Potassium Sorbate, Tocopherol, Citric Acid, Xanthan Gum, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Parfum/Fragrance.