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🔥 Elevate your blowout game with heat-defying, frizz-fighting power!
Kerastase Genesis Thermique Blow Dry Primer is a professional-grade heat protectant spray designed to shield hair from heat styling up to 450°F. Enriched with ginger root and edelweiss native cells, it strengthens hair prone to breakage, reduces hair fall by 99%, and provides 24-hour frizz control. Its lightweight, sulfate-free formula detangles, hydrates, and leaves hair shiny and silky, making it an essential step for a flawless, long-lasting blowout.

















| Asin | B083JLYQCY |
| Best Sellers Rank | #21 in Hair Thermal Protection Sprays |
| Item Model Number | E3244800 |
| Manufacturer | Kerastase |
| Product Dimensions | 1.57 x 1.57 x 7.09 inches; 6.3 ounces |
User
Amazing thermal protection and stronger hair!
I am very happy with this Kérastase heat protector. Since I started using it before the dryer, my hair feels much softer, hydrated and less frizz. In addition, it helps to untangle easily and I notice that my hair looks stronger and with less break.It has a light texture that does not leave hair heavy or greasy, and a delicious aroma that lasts all day. It is perfect for those who use hot tools frequently and want to protect their hair while keeping it shiny and healthy.Undoubtedly, it's an excellent quality product that I'd buy again. I'm totally recommended!
User
Great heat protectant for damaged hair.
This primer is now a must before I blow dry or straighten my hair. It applies smoothly , doesn’t feel heavy or greasy, and I noticed lees frizz and more shine right away. My hair used to get so dry from heat styling , but it feels stronger and softer now . Highly recommend if your hair is damaged from color or heat tools.
User
So good! Worth every penny
The Kérastase Genesis Défense Thermique isn’t just a heat protectant — it’s hair armor. I spray it on before blow-drying or straightening, and my hair looks like glass — smooth, frizz-free, and so soft I can’t stop touching it.It smells absolutely divine (that signature Kérastase scent that lasts all day 😍) and doesn’t leave any stickiness or residue. My ends used to look fried after heat styling, but now they stay healthy and shiny — like I just walked out of a salon.It’s lightweight, nourishing, and seriously protective — my hair feels stronger with every use. Whether you use heat daily or just occasionally, this spray is a must-have in your routine.
User
Salon at home!
soo good! i’ve been using it as a heat protectant and leave in, it smells super clean and my hair is so soft. It’s pricey but good for a hair journey!
User
The best
Love it, great smell and heat protection. Makes my hair soft and shiny.
User
Great product
Very expensive BUT left my hair, silky and lightweight. It didn’t feel heavy or greasy.
User
KERASTASE thermal protector
Kerastase Genesis Thermique- One of the best products I have ever tried for heat protection. It also helps with the fris and depending on your hair length and type is the duration of the product. I give him 10 out of 10 is great.
User
Expensive but good quality product
Love the smell and feeling of this product line. I hate the cost
User
Wygładzający
Świetny spray do mokrych włosów. Cudownie wygładza włosy, sprawia że włosy są miekkie. Bardzo wydajny. Odejmuje gwiazke za zapach, mocno alkoholowy, męskich perfum. Na szczęście dosyć szybko ulatnia się, ale odbiera przyjemność stosowania. Z tego względu nie kupię ponownie, będę testować inne spraye tej firmy.
User
Oldukça güzel
Eşim için almıştım bir defa kullandım. Kalitesi gerçekten farkediyor
User
Protège bien
Vraiment génial pour les cheveux. Il sent vraiment très bon, protége bien les cheveux et les rends doux.
User
Très bien
J'adore les produits Kérastase, surtout la crème thermique, elle vaut vraiment le coup. Je vous assure que c'était un investissement judicieux.
User
Es ideal para el día a día
Lo uso a diario y me deja el pelo genial, desenreda perfecto, huele de maravilla e hidrata mi pelo largo. Lo recomiendo totalmente.
Trustpilot
1 day ago
1 month ago