Genesis - Défense Thermique

Not for me

Did not do anything. Dispenser is awkward, hair was looking dull and I swear it does not provide any thermal protection. Would not repurchase, probably the worst Kerastase product.

Best Hair Spray for Easy Brushing and Amazing Scen

This is my absolute favorite spray. My hair is blonde, and I can easily brush it with this. It smells amazing.

Frizz-Free and Fabulous: My Go-To Hair Savior

The only downside to this product is the price, but it's absolutely worth it! I use it before blow-drying my hair, and wow—my hair feels and looks so healthy while staying frizz-free, even in Florida's humidity. Plus, the scent is amazing. Kerastase never disappoints!

Made my long hair soft and shiny! Fresh and clean smell! Would definitely recommend!

I used this along with the serum and shampoo and conditioner. I did see less hair fall out, but it made my hair so dry and brittle it just wasn’t worth it.

worth every penny

i love how this has made my hair feel! i have extreme heat damaged hair and this product has not only heat protected but moisturized and worked to fix my dead hair. the texture is amazing too. i will absolutely be buying again!!

Its good

I like it but if applied to much makes the hair look oily and greasy

Don't Recommend!

Dries on my hair, decrease the shine. Don't recommend this product at all. So disappointed.

It’s good and I like it!

This is really great project with great results. Now need to try the whole line of Kerastase

love love love

Must have for dry and fine hair! Keep going back to it.

Flat Hair

I should have returned this product, but I waited too long. I applied this to my damp, fine hair, careful not to get close to the root. The smell was ok, but I was not impressed with how it made my hair flat. I even applied my volume products after applying this and my hair still ended up flat, feeling slippery and full of static. This is the second product I have tried from this brand and I am not impressed.

It's ok, but there's better

I bought this a couple of months ago. I felt like it gave me some heat protection and it did reduce the number of broken hairs due to damage. But I thought that it was my hair that was becoming frizzy and hard to smooth when blow drying. I switched to Ciment Thermique and the difference is night and day. Turns out Genesis Thermique made my hair incredibly difficult to smooth. It may be good if you have fine hair, but for my coarse hair that I regularly blow dry, this one is a miss.