Genesis is the first dual action anti-fall haircare range: FOR ALL WOMEN, IN ALL LIFESTYLES, WITH ALL DEGREE OF HAIR FALL.
Powered with a cocktail of highly efficient ingredients to instantly strengthen and thicken the hair fiber for an immediate fuller look with more fiber strength, more fiber retention* and -84% less hair-fall**.
*Clinical study, 99 people, 6 weeks use.
**hair-fall due to breakage. Instrumental test on Bain Nutri-fortifiant + Masque Reconstituant + Ampoule/Sérum Aminexil.
HOW DOES GENESIS WORK?
A double action for your client:
Instantly: PROTECTS AGAINST DAILY EXTERNAL AGGRESSOR AND ANTIOXIDES thanks to Ginger roots and Edelweiss native cells.
Long Term: STOP HAIR-FALL FORTIFIES HAIR ANCHORAGE & RETENTION AND REDUCE HAIR-FALL FROM THE ROOTS thanks to Aminexil.
Défense Thermique benefits:
- Detangles and hydrates without frizz.
- 24H protection against frizz even in high conditions of humidity.
- Protects hair from blow-dry heat.
- Helps to prevent split ends.
- Leaves hair shiny and silky.
- 99% less hair fall due to breakage from brushing*.
- 49% softer hair*.
*After application of Défense Thermique.
WHO IS IT FOR?
Genesis targets every woman with hair fall need that would be efficient, convenient and pleasurable with :
- Instant result of hair care
- Efficacy of anti-hair fall solutions
Prime with the Défense Thermique :
Step 1: Apply on wet lengths.
Step 2: Blow dry.
In case of contact with eyes, rinse them immediately and thoroughly.
Learn more on Access
Ask more information about this productGenesis Défense Thermique is enriched with GINGER ROOT and EDELWEISS NATIVE CELLS.
GINGER ROOTS: Known for its ability to protect against daily external aggressors.
EDELWEISS NATIVE CELLS: Capable to resist the most extreme conditions and is known in skincare for its antioxidants. It also has power & collagen-preserving properties.
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
Rating & Reviews
Mara9012
51.793381412E12 30/10/2026
Love it
[This review was collected as part of a promotion.] Smell good and my hair is so pretty. Best of all. Shining 🌟
Originaly posted on kerastase-usa.com
notmyhair
51.793299509E12 29/10/2026
Amazing results
[This review was collected as part of a promotion.] This product has changed my hair. I have fine, thin hair and this gives my hair a conditioned feel without the heaviness or weighing my hair down. It also has heat protectant so I don't need a separate product.
Originaly posted on kerastase-usa.com
Eman A
51.793290516E12 29/10/2026
The best
Pricey but good, it’s helped my hair a lot. Will buy again.
Originaly posted on kerastase-usa.com
Alic_81
51.793124011E12 27/10/2026
No frizz
This got rid of frizz in my hair and it smelled amazing. Great heat protection that I trust.
Originaly posted on kerastase-usa.com
Long Hair Do Care
51.793061912E12 26/10/2026
It works!
I am new to using heat styling tools. I recently was introduced to a diffuser and a straightener. Let me say my hair thanks me for using this product. I put it on after I freshly wash it, pull water out with a towel. (squeeze don't rub) and spray on this. I allow my hair some natural dry time before brushing it to ensure even distribution and Vala, gorgeous results!
Originaly posted on kerastase-usa.com
kmart98
51.79304841E12 26/10/2026
Obsessed. Been using for years!!!
[This review was collected as part of a promotion.] This is my tried and true. I have been using this for over 5 years now and my detangling and blow drying process game has changed
Originaly posted on kerastase-usa.com
HairKare26
51.793024112E12 26/10/2026
Heat Protecting Hair Care
[This review was collected as part of a promotion.] I really like this heat protecting hair spray. Its lightweight, easy to apply and leaves my hair feeling smooth and well-styled. Also, the bottle is very pretty on my shelf.
Originaly posted on kerastase-usa.com
Lala26
31.793033238E12 26/10/2026
Decent product. Not sure how good it is for me!!!!
[This review was collected as part of a promotion.] An ok product. Not amazing but decent. Don’t know if I would repurchase.
Originaly posted on kerastase-usa.com
Reply from Consumer Care Center 26/10/2026
Hi there! Thanks for giving it a try. We’re glad you found it decent, though sorry it wasn’t a standout for you. We appreciate your honest feedback.
Sari S
51.792710006E12 22/10/2026
Best leave in serum
The best leave in serum it leaves my hair like silk 🤗
Originaly posted on kerastase-usa.com
SiVive
51.792674011E12 22/10/2026
Excellent product
It leaves my hair super soft and it has a lovely fragrance that's lasts
Originaly posted on kerastase-usa.com
Dione17
51.792612815E12 21/10/2026
Amazing product
I love this spray hair protectant. I’m able to comb through my hair after i spray it in my wet hair with ease. It also protects my hair and keeps it soft and smooth when I’m styling.
Originaly posted on kerastase-usa.com
Melb11
51.79261101E12 21/10/2026
Hair
This product makes make hair look amazing and smells great
Originaly posted on kerastase-usa.com
XtinaGonz
51.792601137E12 21/10/2026
Amazing
I loved the heat protectant spray. It smells nice and it leaves my hair soft and without frizz.
Originaly posted on kerastase-usa.com
Sarahth
51.792449007E12 19/10/2026
I’ve purchased 3x!!
I love it!! I’ve purchased this 3 times and will continue to!
Originaly posted on kerastase-usa.com
Paola Y
41.792365307E12 18/10/2026
4.5 ⭐️⭐️⭐️⭐️
Works great as a heat protectant but I find that leaves a slightly heavy residue on my hair. It’s not the worst but I definitely notice when my hair is down or when I try to brush it. The scent may be a little strong if you are sensitive to smells. I personally don’t mind it.
Originaly posted on kerastase-usa.com
KFlorida
51.792254607E12 17/10/2026
Great to use for styling!
[This review was collected as part of a promotion.] My hair stylist uses this when I get my hair done, so I had to get it too for use at home. It helps keep my hair less frizzed up in a southern climate.
Originaly posted on kerastase-usa.com
Jn2026
51.792170012E12 16/10/2026
Best leave in product!
[This review was collected as part of a promotion.] I love how it detangles and also is a heat protector.
Originaly posted on kerastase-usa.com
Apar82
51.792122305E12 15/10/2026
Minimuzes damage
This product is great for protecting hair from heat damage. I’m using my second bottle now.
Originaly posted on kerastase-usa.com
NatalieNB
51.792206904E12 16/10/2026
Amazing!
I ordered this because I got a new Tymo curling iron and I wanted a really good thermal protectant. But I this product is WAY more than just a heat protector. My hair changed from dry and inflexible to super soft and so full of volume and shine. I spray it on my hair directly from the shower and blow dry then curl my hair. My ends feel thicker and don't look broken or damaged anymore. It is lightweight and does not make my hair feel heavy or sticky at all. My curls stay in for 3 days and look great between washes. I love the way this product smells, soft and floral with a light citrus top note. Wonderful product.
Originaly posted on kerastase-usa.com
Minaxx
51.791778506E12 12/10/2026
Love it
Not sticky or oily amd smell good amd it holds the styles very good without being heavy
Originaly posted on kerastase-usa.com
Mimi22
51.791734418E12 11/10/2026
Great Ptoduct
Everytime I use this product I get compliments on how my hair feels and the smell
Originaly posted on kerastase-usa.com
Mdarling2728
51.791658811E12 10/10/2026
Love it!
[This review was collected as part of a promotion.] Great smell. Makes your hair soft and silky. Highly recommend
Originaly posted on kerastase-usa.com
Ary5834
51.791383417E12 07/10/2026
Smells amazing and feels amazing
This product is not heavy and leaves hair feeling wonderful. At first I was worried thinking it would make my hair oily because it’s a heat protector but no it gives shine and it is not heavy at all
Originaly posted on kerastase-usa.com
Mgonzalez
51.79165701E12 10/10/2026
Amazing!
[This review was collected as part of a promotion.] This product is the best! Smells amazing and gave me the look that I wanted for my hair
Highly recommended!
Originaly posted on kerastase-usa.com
BarbieP
51.791208813E12 05/10/2026
Love genesis defense line
The genesis defense line is phenomenal. The product protects your hair, leaves it soft and silky.
Originaly posted on kerastase-usa.com
CatloverJax
41.791134112E12 04/10/2026
Heat protection
Works well and helps prevent damage to hair when styling. Would recommend
Originaly posted on kerastase-usa.com
Mickey11
51.791074706E12 03/10/2026
So good
[This review was collected as part of a promotion.] It protects my hair from hair dryer and it makes my hair smells good
Originaly posted on kerastase-usa.com
Kathy1726
51.790903707E12 01/10/2026
Protects your hair
[This review was collected as part of a promotion.] I wasn’t sure at first about this product but after many uses I can see the difference in every blowout I really recommend getting it
Originaly posted on kerastase-usa.com
TarLeh
51.790892908E12 01/10/2026
Great heat protection
[This review was collected as part of a promotion.] This really keeps my fine hair safe from heat styling. A little goes a long ways. Smells fantastic too!
Originaly posted on kerastase-usa.com
Beth75
51.790891109E12 01/10/2026
Love it
[This review was collected as part of a promotion.] Love this product it smells amazing and makes my hair silky soft
Originaly posted on kerastase-usa.com
Jamer4
51.79089021E12 01/10/2026
Smells so good!!
[This review was collected as part of a promotion.] Love this so much! It smells so dang good! Love how it makes my hair feels
Originaly posted on kerastase-usa.com
Anonymous
51.791178208E12 05/10/2026
Te best heat protector
[This review was collected as part of a promotion.] I use heat every day and my hair looks healthy with minimal damage and no dryness
Originaly posted on kerastase-usa.com
Ebeaulha
41.790820907E12 30/09/2026
Non greasy 👍🏻
I like this product. It’s non greasy and smells great! But the spray nozzle doesn't produce a fine mist; instead, it shoots the liquid off in the wrong direction.
Originaly posted on kerastase-usa.com
Bella 1190
51.790700321E12 29/09/2026
Game changer for blow drying
It took my a long time to find a product that worked for my thin hair and as a new girly learning to do her hair at home ! This protects my hair gives shine and does not smoke when blowing
Originaly posted on kerastase-usa.com
Ria287
51.790645408E12 28/09/2026
Amazing!!!
The best heat protectant! I feel like my hair stays healthy!
Originaly posted on kerastase-usa.com
Leskaa
41.790444711E12 26/09/2026
Its ok
[This review was collected as part of a promotion.] Not sure how i feel. I have fine hair and use a little bit and hair still feels oily the next day.
Originaly posted on kerastase-usa.com
Julieeee726
51.790365514E12 25/09/2026
Total Game Changer
[This review was collected as part of a promotion.] This product strengthens my weak, over processed blond hair and I barely have any hair fall. Absolutely recommend!!
Originaly posted on kerastase-usa.com
Trinha22
51.790362813E12 25/09/2026
My daughter swears by this leave in
I’ve purchased this leave in treatment for my daughter a few times now and she said she cannot live without it. It has transformed her hair to much more shiny, soft, and healthy.
Originaly posted on kerastase-usa.com
OohLala911
51.790361913E12 25/09/2026
FL Frizz Fighter!
I love the effects of this leave-in product: moisturizing enough to help fight against the Florida humidity and my constant phrase but light enough to not weigh my hair down or leave it greasy. The scent is divine and a little goes a long way. Can't wait for the rest of my Genesis treatment system to come in the mail
Originaly posted on kerastase-usa.com
AprilD
51.790280914E12 24/09/2026
Smells delicious
Smells wonderful. This a nice heat protecting spray
Originaly posted on kerastase-usa.com
Mila2mila
51.789833881E12 19/09/2026
Pretty good
I really liked it! It moisturizes the hair while protecting it. It smells good, but it weighs the hair down a bit.
Originaly posted on kerastase-usa.com
Love shampoo
51.789833881E12 19/09/2026
Love heat protection
[This review was collected as part of a promotion.] This is the best heat protection I have had by far
Originaly posted on kerastase-usa.com
Texas Canuck
51.790010017E12 21/09/2026
Can’t live without it
I use this product every time I blow dry my hair, it smells great and protects my hair. My hair easily gets damaged from heat but this product has made a tremendous difference in how my hair handles a blow dry. My stylist introduced me to it and I am now using it daily.
Originaly posted on kerastase-usa.com
Sisi88
51.789515015E12 15/09/2026
loved it! Super soft and smells amazing
[This review was collected as part of a promotion.] The difference is immediate: it leaves the hair very soft with a delicious scent. I still haven't used it with heat, but I am fascinated by the results. Great product!
Originaly posted on kerastase-usa.com
Orange Beach Tricia
41.78907943E12 10/09/2026
Great
It helps protect my hair from the heat from blow drying and curling or flat iron.
Originaly posted on kerastase-usa.com
Eringill1007
51.789467318E12 15/09/2026
Hair protect
[This review was collected as part of a promotion.] I love this hair protectant. It does smell good as well. I would not go without it.
Originaly posted on kerastase-usa.com
KaylaLB
51.789368318E12 14/09/2026
Great addition to my routine
Loving this product for fine frizzy hair! Apply evenly to towel dried hair and my blowouts are smooth and less frizz throughout the day without weighing it down
Originaly posted on kerastase-usa.com
ElsieC
51.789467318E12 15/09/2026
Another great Genesis product
[This review was collected as part of a promotion.] I may be biased because I’m in love with the entire Genesis line and this is my newest addition. My hair is fragile now and rarely use heat but will use this when I do. The scent is gorgeous.
Originaly posted on kerastase-usa.com
LilCat
51.788997509E12 09/09/2026
My favorite of all their collections
The SCENT!!! Oh my! People sniff me lol!
But aside from that, this whole collection has transformed my hair! It’s thicker stronger and just so pretty air dried!! Yes air dried everyday!
Read more reviews from other products I used if this collection!! It’s a must try!!
Originaly posted on kerastase-usa.com
Julie Lyrek
51.78896782E12 09/09/2026
This product is amazing!
[This review was collected as part of a promotion.] This product is amazing! Once a week I put this mask on, put on a shower hat. Then I let it "cook" for an hour or ? When I risnse it out, my hair is sooooo soft and silky. This really works!
Originaly posted on kerastase-usa.com
Anonymous
51.788955239E12 09/09/2026
Heat Protector
[This review was collected as part of a promotion.] This stuff is great! Protects your hair but dont make it heavy or flat
Originaly posted on kerastase-usa.com
Sheiff
51.78883821E12 07/09/2026
Dlb2373
51.788813915E12 07/09/2026
Best Heat Protector
[This review was collected as part of a promotion.] Best heat protector out there. I use this every time I use my flat iron.
Originaly posted on kerastase-usa.com
Carl M
11.788986807E12 09/09/2026
Just Okay
Made my hair dry, sticky and tangled. Irritated my scalp as spraying reaches the scalp too. Should be cream or lotion.
Originaly posted on kerastase-usa.com
Reply from Consumer Care Center 09/09/2026
Hi there! We are so sorry to hear that the spray left your hair dry, sticky, and tangled, and that it caused scalp irritation. We completely appreciate your feedback suggesting that a cream or lotion format would be much better suited for application. If you would like help finding a rich, creamy treatment or leave-in lotion that keeps your hair smooth and manageable without the challenges of a spray, please feel free to reach out to our consumer care team or visit your local Kérastase salon!
Gi Tutunic
51.789002909E12 09/09/2026
Impress
[This review was collected as part of a promotion.] I absolutely love this product! It has made a noticeable difference in my fine, fragile hair, leaving it feeling stronger, softer, and healthier without weighing it down. My hair looks more full and has a beautiful shine after using it. And the smell is absolutely amazing—luxurious, fresh, and long-lasting! It makes my hair feel like I just left a high-end salon. Definitely one of my favorite Kérastase products and highly recommended! ✨💕
Originaly posted on kerastase-usa.com
Anonymous
51.788886823E12 08/09/2026
Love !
[This review was collected as part of a promotion.] This product makes my hair so soft and silky . Moreover , it is a heat protector. I use flat iron in a regular basis.
Originaly posted on kerastase-usa.com
JC_444
51.788984019E12 09/09/2026
Will buy it again
Love the scent and how well it’s been proven to protect against heat damage. Definitely recommend and will buy again.
Originaly posted on kerastase-usa.com
ccb2702
51.788639315E12 05/09/2026
excellent heat protector
[This review was collected as part of a promotion.] I have been buying this product over & over again , non greasy , light weight , volume, heat protector all in one bottle ! go for it you will not regret!!!!!!
Originaly posted on kerastase-usa.com
Lalagal
51.788569114E12 04/09/2026
Leave in spray
[This review was collected as part of a promotion.] Really liked this product. I use it to help protect & detangle my hair.
Originaly posted on kerastase-usa.com
cezmontes
51.788482712E12 03/09/2026
Termique
Smells great and it does protects your hair
I love it the only thing I would recommend kerastase is to make it I. Spray option or easier to put in your hair
Originaly posted on kerastase-usa.com
Ashtan
51.788716721E12 06/09/2026
smells wonderful, leaves my hair very soft
This product is great for protecting my hair, extensions from the heat of hair tools. It smells wonderful and leaves my hair soft and shiny
Originaly posted on kerastase-usa.com
JennyAnn
51.788542123E12 04/09/2026
Impressive Results
[This review was collected as part of a promotion.] I noticed a drastic improvement in my hair breakage in just a few uses! Super impressed!
Originaly posted on kerastase-usa.com
Love God
51.788300726E12 01/09/2026
Excellent
Milky light beautiful smell makes my hair less frizzy
Originaly posted on kerastase-usa.com
Tammy 361
51.788282027E12 01/09/2026
Best stuff ever
[This review was collected as part of a promotion.] This product saved my hair, my hair used to break all the time till I used this
Originaly posted on kerastase-usa.com
Malibu 08
41.788445819E12 03/09/2026
Genesis Hair
I liked it! It helped my hair feel healthy & smooth.
Originaly posted on kerastase-usa.com
Kawegn
51.788109219E12 30/08/2026
Great product!
[This review was collected as part of a promotion.] Love the feel and smell of this product. I can already tell a difference in the texture and smoothness of my hair.
Originaly posted on kerastase-usa.com
Tris46
51.787864424E12 27/08/2026
Superb!
This product does what it is supposed to do and more. It smells great, protects my hair, stops heat damage before it starts, and leave my hair feeling soft and frizz free.
Originaly posted on kerastase-usa.com
Bellmar
51.787845514E12 27/08/2026
Love
I love this! It’s lightweight and does the job! I use this along with the Elixir hair oil and I’ve noticed such a difference in the health of my hair.
Originaly posted on kerastase-usa.com
Laura F
51.787829316E12 27/08/2026
Perfect product for my hair!
[This review was collected as part of a promotion.] My hair loves this product! Whether I am straightening it or letting it go curly, it’s soften and makes it look it look polished and shiny! Great scent too!
Originaly posted on kerastase-usa.com
Dani12
51.787786111E12 26/08/2026
Love the outcome!
I love the outcome after use. It doesn't leave your hair oily. Its perfect
Originaly posted on kerastase-usa.com
sherina
51.787557519E12 24/08/2026
Strengthen hair
[This review was collected as part of a promotion.] I felt it strengthen my hair and it’s an okay leave in which doesn’t weight it down.
Originaly posted on kerastase-usa.com
CyndiNils
51.787522408E12 23/08/2026
Best detangler ever
[This review was collected as part of a promotion.] This product detangles your hair easy and leaves a nice parfum. Detangling and protecting, I wish I di
Originaly posted on kerastase-usa.com
Cris Silva
51.787516115E12 23/08/2026
Perfect
This serum is so good. My hair really needs it because I always use heat styling—I can't go without my blow dryer. It truly makes my hair stronger. It gives amazing shine and smells absolutely incredible. I love it.
Originaly posted on kerastase-usa.com
AdaSDo
41.787596217E12 24/08/2026
I love how this smells
This product smells amazing. I’m not crazy about it in terms of packaging I also feel it leaves residue in my hair but I love the smell
Originaly posted on kerastase-usa.com
Bluegrassgal
51.787414416E12 22/08/2026
Soft and frizz free
Heavenly smell but most importantly leaves my hair healthy and frizz free. Southern heat is no match for this! I’ve been using these products for years and have never looked back.
Originaly posted on kerastase-usa.com
laura22
31.787440036E12 22/08/2026
Didn’t notice a huge difference
Not a good match for my thin hair. Did not notice enough of a difference for the price.
Originaly posted on kerastase-usa.com
Reply from Consumer Care Center 22/08/2026
Thank you for sharing your honest feedback with us. We completely understand your perspective—when you invest in a luxury Kérastase formula, you deserve a noticeable, high-performance transformation that makes every dollar feel completely worthwhile. Thin or fine hair requires a very delicate balance: it needs lightweight care that provides softness and shine without weighing down your natural lift or leaving any heavy residue. If a product is too rich, it simply won't deliver that airy, voluminous "wow" factor you are looking for. We would love to help you find an ultra-lightweight formula designed specifically for thin strands. Please feel free to reach out to our team at any time so we can guide you to your ideal match!
LeidyMun
51.786903217E12 16/08/2026
Smell delicious
Amazing heat protectant! It protects from heat up to 220°C, smells so luxurious, and actually helps with my hair fall. My hair feels stronger, less breakage when I brush, and super shiny after blow-drying. Not greasy or heavy at all. Love it!
Originaly posted on kerastase-usa.com
NayNay62
51.786823123E12 15/08/2026
Favorite Product
[This review was collected as part of a promotion.] My favorite detangler and heat protector. I have very fine highlighted hair that tends to tangle and break off. Best product I’ve found to help with these issues. Also works great on detangling my granddaughter’s hair
Originaly posted on kerastase-usa.com
Beth76
51.786769108E12 15/08/2026
Favorite!
This is probably my favorite Kérastase product! Cannot live without it!❤️❤️❤️
Originaly posted on kerastase-usa.com
Anonymous
51.78700582E12 17/08/2026
I love it
[This review was collected as part of a promotion.] I makes my hair feel so protected when I use the straightener
Originaly posted on kerastase-usa.com
rosey6
51.786734916E12 14/08/2026
Might be my favorite product
[This review was collected as part of a promotion.] I'm a huge believer in Kerastase products. The genesis collection has been amazing for my hair and this heat protectant is an essential part of my routine. Highly recommend any of their products but this one especially.
Originaly posted on kerastase-usa.com
YessiR
51.786930208E12 16/08/2026
It a amazing product
[This review was collected as part of a promotion.] I’ve been using the Kérastase Genesis Heat Protectant for a few weeks, and I’m really impressed .It's perfect to take care of my hair that is long, straight and frizzy.It makes my hair softerThis product helps me with hair loss.
Leaves a soft and delicate smell in the hair.
It protects me from the strong heat of the iron 100 percent.
Prevent my hair from breaking.I’ve noticed fewer split ends, less frizz, and softer, healthier hair since using the Kérastase Genesis Heat Protectant.it is super nourishing.
Originaly posted on kerastase-usa.com
Rotemt
51.786649425E12 13/08/2026
Amazing Heat Protection for Soft, Smooth Hair
I love the Kérastase Genesis Défense Thermique! It feels lightweight, smells amazing, and leaves my hair soft, smooth, and easy to style without weighing it down. I especially love using it before blow-drying because it gives my hair heat protection while helping it look shiny, healthy, and less frizzy. A great addition to my hair routine!
Originaly posted on kerastase-usa.com
Palora
51.78700582E12 17/08/2026
I am all for it
I really use this at any time even before bed it has changed my hair it shines I was scared because people said it was too heavy in the hair but it is not for me
Originaly posted on kerastase-usa.com
Dandon
51.78658731E12 12/08/2026
In love with it
[This review was collected as part of a promotion.] Very goood it’s make my hair look smooth healthy nice
Originaly posted on kerastase-usa.com
Anavaleria123
51.786452323E12 11/08/2026
AMAZING
The Best leave in so far, my hair felt so smooth and easy to style, will buy again!!!
Originaly posted on kerastase-usa.com
Vanessa 321
51.786231838E12 08/08/2026
The best
I will never go back to any other brand this is the best
Originaly posted on kerastase-usa.com
Ang22177
51.78596901E12 05/08/2026
Obsessed
I feel like I can’t live with out this one. It keeps my hair healthy and hydrated
Originaly posted on kerastase-usa.com
Emily1088
51.785706211E12 02/08/2026
5/5 recommend
[This review was collected as part of a promotion.] This product smells great and works even better. I see less breakage and better hair health overall
Originaly posted on kerastase-usa.com
Lisa718
51.78562161E12 01/08/2026
Keeps the flyaways tame
light weight for my fine hair, keeps flyaways away . Hair is shiny, smooth and smells great!
Originaly posted on kerastase-usa.com
Pakita
51.785511822E12 31/07/2026
Love this!
[This review was collected as part of a promotion.] This heat protectant is characterized by its lightweight formulation, which ensures a flexible and residue-free finish. It delivers sustained performance and possesses a highly desirable fragrance. This product is my preferred choice.
Originaly posted on kerastase-usa.com
Virg23
51.785813309E12 03/08/2026
Wonderful heat protectant spray
I really loved the heat protectant spray. My hair has never felt so good sfyer blowdrying
Originaly posted on kerastase-usa.com
Jude88
51.785357014E12 29/07/2026
Protect my hair
[This review was collected as part of a promotion.] My hairdresser introduced me to this product and I love it
Originaly posted on kerastase-usa.com
Meganlag
51.785349816E12 29/07/2026
Heat protectant
[This review was collected as part of a promotion.] Leaves my hair healthy and smelling so good love it so much
Originaly posted on kerastase-usa.com
Avneet Kaur
51.785344436E12 29/07/2026
Amazing
It has been one of the amazing products i have used for my curls!
Originaly posted on kerastase-usa.com
Yolandita
41.785197706E12 27/07/2026
I Love it!!!
[This review was collected as part of a promotion.] I love this product, one of my favorites
I use this product after take a shower and gives me a soft hair
Originaly posted on kerastase-usa.com
South37
51.785105906E12 26/07/2026
Best heat product for fine hair on the market
[This review was collected as part of a promotion.] My hair dries perfectly smooth and without any frizz. It also smells great!
Originaly posted on kerastase-usa.com
Saruni
51.785024909E12 25/07/2026
Makes hair soft and easy to brush and untangle
This worked on day one. Together with the shampoo and conditioner reduced my chronic breakage
Originaly posted on kerastase-usa.com
Ss1234
51.785017705E12 25/07/2026
Buy it
[This review was collected as part of a promotion.] Smells so good and it works like a charm with my other products and leaves hair soft and shiny
Originaly posted on kerastase-usa.com
Joanie13
51.78502761E12 25/07/2026
My favorite heat protect
Well, this product been using it for a while now it smells wonderful
Originaly posted on kerastase-usa.com
Defense Thermique
150mlKerastase - Genesis
Description
Anti Hair-fall Fortifying blow-dry fluid for weakened hair, prone to falling due to breakage. Provides anti-breakage action and heat protection up to 220°C. Ensures optimal hydration without frizz.
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