Product Details

Kérastase Genesis Défense Thermique is a fortifying blow-dry fluid designed for weakened hair prone to breakage and split ends. Enriched with Edelweiss Native Cells and Ginger Root, this milky formula delivers powerful anti-breakage action, 24-hour frizz protection, and heat shielding up to 220°C. It detangles, hydrates, and boosts shine, leaving hair silky, smooth, and resilient with a luxurious, touchable finish.

With 99% less hair fall due to breakage* and 88% smoother, more conditioned hair**, this lightweight spray strengthens strands, prevents split ends, and protects against daily aggressors like humidity and heat styling. Ideal for all hair types, it enhances manageability and radiance. Pair with the Kérastase Genesis range for a complete anti-hair-fall routine. *vs. non-conditioning shampoo. **vs. non-conditioning shampoo.

Note: Genesis is not a hair loss product.

Key Benefits

• Reduces hair fall due to breakage by 99%*
• Provides heat protection up to 220°C
• Controls frizz for 24 hours, even in high humidity
• Strengthens and fortifies weakened hair
• Detangles and hydrates for a silky, smooth finish
• Boosts shine and enhances hair manageability
• Safe for colour-treated and chemically processed hair

Suitable For

• Weakened hair prone to breakage or split ends
• All hair types, including straight, wavy, and curly
• Colour-treated or chemically processed hair
• Hair needing heat protection and frizz control

Directions For Use

1. On towel-dried hair, apply 2-4 pumps of Kérastase Genesis Défense Thermique, using less for short or fine hair, more for long or thick hair.

2. Distribute evenly from mid-lengths to ends using a comb for thorough coverage.

3. Blow-dry for added volume or air-dry for a natural finish.

4. On dry hair, apply 2-4 pumps as a finishing touch for extra shine and frizz control; style as desired.

Pro Tips

• Use sparingly on fine hair to maintain volume while ensuring protection.
• Pair with Kérastase Genesis Bain Hydra-Fortifiant Shampoo for a complete fortifying routine.
• Apply before heat styling to maximize protection and minimize breakage.
• For extra nourishment, follow with Kérastase Genesis Masque Reconstituant.

Ingredients

AQUA / WATER / EAU • COCOS NUCIFERA OIL / 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 • BEHENTRIMONIUM CHLORIDE • 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 (F.I.L. C240227/1).

*We make every effort to keep our ingredient lists accurate and up to date. However, formulations may be improved or adjusted over time, and slight variations can occur between regions due to local regulations. For the most accurate information, always refer to the ingredient list printed on your product packaging.

Frequently Asked Questions

Q. Does Kérastase Genesis Défense Thermique need to be rinsed out?

A. No, it’s a leave-in blow-dry fluid designed to stay in hair for protection and nourishment.

Q. Is Kérastase Genesis Défense Thermique safe for colour-treated hair?

A. Yes, it’s safe for colour-treated and chemically processed hair, preserving vibrancy and strength.

Q. How does Kérastase Genesis Défense Thermique work with other Genesis products?

A. It pairs perfectly with Kérastase Genesis Bain Hydra-Fortifiant Shampoo and Masque Reconstituant for a complete anti-breakage routine.

Q. Can Kérastase Genesis Défense Thermique be used on curly hair?

A. Yes, it smooths and protects curly hair, enhancing definition while preventing breakage.

Q. How much Kérastase Genesis Défense Thermique should I use?

A. Use 2-4 pumps, adjusting based on hair length and thickness—less for short or fine hair, more for long or thick hair.

Q. Does Kérastase Genesis Défense Thermique protect against high humidity?

A. Yes, it provides 24-hour frizz protection, even in high-humidity conditions.

Q. Will Kérastase Genesis Défense Thermique weigh down fine hair?

A. No, its lightweight formula strengthens and protects without adding heaviness, ideal for fine hair.

Q. Can Kérastase Genesis Défense Thermique prevent hair loss?

A. It’s not a hair loss product but reduces hair fall due to breakage by 99%* when used as directed. *vs. non-conditioning shampoo.