Back
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
Rajae
41.752588291E12 15/07/2025
Protective but Still frizzy
I chose this product bc it supposed to be "an all in one" so i don't over do it with extra products, yes it is a heat protector but my hair is still frizzy after so i have to pair it with an other spray or oil to have the effect i want; Still i like the smell and it being light wight
Originaly posted on kerastase.ca
Auntie
51.751985908E12 08/07/2025
Perfect for thin hair
This has an amazing smell and conditions hair wonderfully
Originaly posted on kerastase-usa.com
Anonymous
51.751850905E12 06/07/2025
ANOTHER AWESOME PRODUCT!
I love this! Does everything it says it will! Another great product!
Originaly posted on kerastase-usa.com
Ashley97
51.751786106E12 06/07/2025
Excellent product!
Love this product so much, I’ve been using it for the past month and is excellent.
Originaly posted on kerastase-usa.com
AmandaB11
51.751584507E12 03/07/2025
Amazing product!
This product is wonderful! Smells amazing, makes my hair silky smooth while styling. My overall texture has improved and my hair feels so good since starting to use this.
Originaly posted on kerastase-usa.com
JuliaG
51.751503526E12 02/07/2025
Don’t wait! Must buy product!
This product was recommended by my hairstylist and it has been a game changer! I am a natural blonde (with highlights 2x/year), and was Starting to see some breakage. I have been using this product for only 2 weeks but the change is incredible! Healthier looking/feeling hair. The product is not greasy, does not leave a film, does not weigh down my hair, and has a pleasant neutral smell.
Originaly posted on kerastase-usa.com
Kathryn W
51.751380209E12 01/07/2025
Best out of the shower product for hot styling
This is my favorite heat protectant/leave in conditioner I’ve ever used. It adds so much softness to my changing hair and the smell is divine.
Originaly posted on kerastase-usa.com
ReeseA
21.751399576E12 01/07/2025
Not for fine hair
It makes my fine hair very flat and too soft (it won’t even hold in a pony tail because of the softness). I’d like to try a different product next time, but at this price, I feel like I have to finish this one first.
Originaly posted on kerastase-usa.com
Reply from Consumer Care Center
Hi there, Thanks for your feedback on Genesis Defense Thermique Heat Protecting Spray. We're sorry to hear that it wasn't the right fit your your hair type and needs, hindering styling. Although not a heat protectant, we recommend Densifique Densimorphose which is a thickening hair mousse for finer hair types.
H Esma
51.751304608E12 30/06/2025
Recommended
I love the texture, it’s easy to use and help to style very easy.
Originaly posted on kerastase-usa.com
Larissalllll
41.751182208E12 29/06/2025
Annoying spray nozzle
I do like this product. Good heat protectant. Mild but pleasant smell. I deducted 1 star bc it’s an annoying spray cap. You have you push down hard and I have to use two hands sometimes to get the back of my head. I honestly might not purchase this again just bc it’s not an easy application.
Originaly posted on kerastase-usa.com
05bgrego
51.751297408E12 30/06/2025
Love it!
I love this product- my hair is so soft and shiny!!! Slightly afraid to let my daughter use it, I may not see it again!
Originaly posted on kerastase-usa.com
emmynyc
51.751026508E12 27/06/2025
Favorite New Addition To My Haircare Routine
[This review was collected as part of a promotion.] My hair feels and looks so much healthier after using this spray. I love the smell and how it doesn't leave a greasy/oily residue. Will definitely be buying again!
Originaly posted on kerastase-usa.com
Missy O
51.750219226E12 18/06/2025
Happy Customer
[This review was collected as part of a promotion.] This product has made such a difference with my hair from breakage using hot tools.
Originaly posted on kerastase-usa.com
Deborah E
51.750611137E12 22/06/2025
Oops, They Did it again!
Kérastase has done it again with the Genesis Défense Thermique Heat Protecting Spray—a must-have in any haircare routine, especially for those who style regularly with heat tools.
From the first use, I noticed a difference in the way my hair felt and looked. The spray is lightweight, non-greasy, and has a soft, luxurious scent that lingers without being overpowering. It applies evenly and doesn’t leave any sticky residue or buildup. Most importantly, it offers exceptional heat protection up to 450°F, which gives me peace of mind when blow drying, straightening, or curling.
What sets this product apart is its dual-action formula: it not only protects against heat damage but also strengthens hair that’s prone to breakage and fallout. Enriched with ginger root and edelweiss native cells, it nourishes the hair fiber and helps reduce breakage, making it perfect for weakened, thinning, or stressed hair.
After several weeks of use, my hair feels softer, stronger, and more resilient. I’ve noticed less shedding when brushing and a smoother finish after heat styling. It has quickly become a staple in my haircare regimen.
Pros:
Excellent heat protection (up to 450°F)
Lightweight and non-sticky
Strengthens and reduces breakage
Smells incredible
Adds smoothness and shine
Cons:
Slightly pricey, but worth it for the quality and performance
Overall, if you’re looking for a high-performance, salon-quality heat protectant that also strengthens and beautifies your hair, Kérastase Genesis Défense Thermique is well worth the investment.
Originaly posted on kerastase-usa.com
JNg841
51.750062607E12 16/06/2025
The best hair care products must have
I use this everyday after shower spray before blow dry my hair. Make my hair so smooth and smell so nice
Originaly posted on kerastase-usa.com
Hair101111
51.749836707E12 13/06/2025
Recommend!
Not oily and makes my hair so soft. The added heat protectant benefits is a huge plus too!
Originaly posted on kerastase-usa.com
Karen Elizabeth T
51.749814209E12 13/06/2025
Happy with Hair in New Jersey
Love how this smells and works on my hair. I use it every time I wash my hair and it really has made a difference in my hair texture. I wouldn't want to blow dry my hair without it!
Originaly posted on kerastase-usa.com
RedHeadIslandGirl
51.749514517E12 09/06/2025
Another Fabulous Kerastase Product
This was the first Kerastase Heat Protecting Spray and I Love it. I am trying various
products and I Love them all! Kerastase is just the most Outstanding Line of Products for your hair!!! Have you thought of adding makeup to your line as well?
Originaly posted on kerastase-usa.com
Jassybeth
51.749401113E12 08/06/2025
Product
[This review was collected as part of a promotion.] I’ve been using this hair product for a few weeks now, and I’m impressed! It leaves my hair feeling soft, smooth, and manageable without weighing it down.
Originaly posted on kerastase-usa.com
Herns1
51.749173403E12 05/06/2025
Oh how wonderful it smells!
[This review was collected as part of a promotion.] I get so many compliments on how my hair smells when I use this product. Definitely does the job of protecting my hair from heat
Originaly posted on kerastase-usa.com
alarimore
51.749241805E12 06/06/2025
Love this product
[This review was collected as part of a promotion.] Love this and smells so good! I even use it on my sons hair.
Originaly posted on kerastase-usa.com
DarleneO
51.749090603E12 04/06/2025
Shine
[This review was collected as part of a promotion.] Love the shine, my hair was dull, not anymore. I have received compliments on how healthy it looks
Originaly posted on kerastase-usa.com
JPG3334
51.749072605E12 04/06/2025
Left my hair feeling silky soft
Love the smell of this product and how it did not leave my hair weighed down.
Originaly posted on kerastase-usa.com
Letycia526
51.749137424E12 05/06/2025
Great product!
[This review was collected as part of a promotion.] I love this sorry and I religiously use it as a deranged after I wash my hair! It leaves my hair so soft and silky smooth! This is one product I will be repurchasing over and over again!
Originaly posted on kerastase-usa.com
Jhajaira
51.749051012E12 04/06/2025
Detangling and smooth feeling
I love the smell and freshness plus protective layer to my hair it does leave on it.
Originaly posted on kerastase-usa.com
Greenbean123
51.748924107E12 03/06/2025
True heat protectant
[This review was collected as part of a promotion.] Although I don’t use blow dryers or styling tools often, this spray is a miracle when I do. Less split ends and near to no frizz
Originaly posted on kerastase-usa.com
Sawyer44
51.748837704E12 02/06/2025
Wonderful
[This review was collected as part of a promotion.] Love this product. Makes my hair silky smooth and smells great
Originaly posted on kerastase-usa.com
McFuzz53
51.748807106E12 01/06/2025
Excellent product
[This review was collected as part of a promotion.] Absolutely love the smell. I have very course and frizzy hair and this product works wonders
Originaly posted on kerastase-usa.com
Stefanie77
51.748837704E12 02/06/2025
Lifesaver
This is such a lifesaver. It does it all! And the smell is amazing. I squirt about 10 sprays into my hand then blend it through.
Originaly posted on kerastase-usa.com
carsoni
51.748615414E12 30/05/2025
silky smooth product
The product works very well with calming frizzy hair!
Originaly posted on kerastase-usa.com
Brooks1231
51.748488507E12 28/05/2025
Soft weightless heat protection
[This review was collected as part of a promotion.] The smell is great and the I like how for the mist is. It lasts a long time and only a little product is needed. I’m not sure how well it worked to be honest, but I have faith in the brand that it does what says it’s going to do and protects my hair. I’ve already ordered a new bottle.
Originaly posted on kerastase-usa.com
Purpleheart
51.748488507E12 28/05/2025
Must have
Love this! It makes my hair smell so good! It's a must have!
Originaly posted on kerastase-usa.com
rinagrrl
51.748356208E12 27/05/2025
Great and Effective Product
[This review was collected as part of a promotion.] This product is very effective in preventing further damage to my hair (my hair is curly and I highlight it, so it is already damaged).
Originaly posted on kerastase-usa.com
millie123
51.747971005E12 22/05/2025
My Go-To!
This is my go to product for styling with a blow dryer. Speeds up drying and smells so good!
Originaly posted on kerastase-usa.com
Maria De Los Angeles
51.748007009E12 23/05/2025
Heat protectant, islander approved!
[This review was collected as part of a promotion.] Amazing heat protectant, and here in this island you get plenty of sun so you need to take care of it.
Originaly posted on kerastase-usa.com
Jiseth
51.747966502E12 22/05/2025
I loved this product
[This review was collected as part of a promotion.] It leaves my hair super soft.
I like to use it on damp hair after washing it, I also feel like it leaves my hair frizz-free.
Originaly posted on kerastase-usa.com
Julie N
51.747691106E12 19/05/2025
Genesis leave in conditioner and heat protector.
Love this product! The best for heat protection and de-tangling
Originaly posted on kerastase-usa.com
ngserpas
31.747759088E12 20/05/2025
Smells nice
[This review was collected as part of a promotion.] Haven’t used it long enough but will give an update after a month.
Originaly posted on kerastase-usa.com
Reply from Consumer Care Center
Hi there, We look forward to hearing your thoughts after your continued use of Genesis Défense Thermique Spray. We're confident you'll appreciate its heat protection and strengthening benefits with continued use. Please don't hesitate to reach out if any questions arise.
Linzikquew
51.747348204E12 15/05/2025
Can't Live Without It
[This review was collected as part of a promotion.] Since I started using this, my hair has been silkier, shinier, and honestly it seems thicker.
Originaly posted on kerastase-usa.com
Bianca A
51.747318515E12 15/05/2025
A must have
Love this because it doesn’t weigh my hair down at all like other products do. It also leaves my hair smelling so good!!
Originaly posted on kerastase-usa.com
Marisa24601
51.747230312E12 14/05/2025
Magic
[This review was collected as part of a promotion.] This stuff is pure magic. My hair has never looked better.
Originaly posted on kerastase-usa.com
Roroha
51.747074607E12 12/05/2025
Amazing product works magic definitely recommend
[This review was collected as part of a promotion.] Kept my hair, shiny and beautifully styled would definitely recommend to fine hair
Originaly posted on kerastase-usa.com
Jazzy09
51.746993606E12 11/05/2025
Love the way it smells
[This review was collected as part of a promotion.] As I say about every product I’ve bought from KÉRASTASE, my hair looks and feels better than ever, this product made my hair feel healthier too
Originaly posted on kerastase-usa.com
La La 1
51.747062909E12 12/05/2025
Love
[This review was collected as part of a promotion.] Love this product
So much! Does wonders for your hair!
Originaly posted on kerastase-usa.com
BB1315
51.746970206E12 11/05/2025
Visible Improvement
[This review was collected as part of a promotion.] I am very pleased with all the Kerastase hair products I have purchased. I have seen less shedding and new growth. My hair feels so light and clean when I blow it out.
Originaly posted on kerastase-usa.com
Blondie61
51.746592203E12 07/05/2025
Amazing!!
This heat protecting spray is the best one I have ever used! It leaves my hair soft, manageable and it smells amazing!
Originaly posted on kerastase-usa.com
Jenny Ng
51.746554407E12 06/05/2025
The one and only Spray
My hair is very tangled and damaged due to all the coloring i had on and this one is a life saver for me. Easy to comb and style with just a few spray , protect from the heat
Originaly posted on kerastase-usa.com
Asch asch
51.746406803E12 04/05/2025
Génesis heat protection
Scent,soft,not heavy… and most importantly IT PROTECTS THE HAIR ! Am In love!!
Originaly posted on kerastase-usa.com
Samantta
51.746321305E12 03/05/2025
Heat protection
A lot of protection for my hair against hair dryers and hot wheater
Originaly posted on kerastase-usa.com
KristineS
51.746284407E12 03/05/2025
Love this product
[This review was collected as part of a promotion.] Great product and will buy again.. really protects my hair
Originaly posted on kerastase-usa.com
Descabelada
41.746196288E12 02/05/2025
Good
I was looking for a product to protect my hair. It’s really good, but I will try another one. I was reading and I think kerastase has others stronger than this one.
Originaly posted on kerastase-usa.com
Banana5555
51.745964904E12 29/04/2025
One of my faves!
Obsessed with this product! Use it daily part of my routine!
Originaly posted on kerastase-usa.com
Alby15
51.745863208E12 28/04/2025
Simply exceptional
[This review was collected as part of a promotion.] The change in my hair with this heat protector has simply been wonderful, I'm loving it
Originaly posted on kerastase-usa.com
JessieLyn
51.745857809E12 28/04/2025
Amazing detangler
This is an amazing leave in conditioner and is great at detangling. My hair is very fine and tangled easily when washing, but this product it brushes out quickly. I love the smell of it.
Originaly posted on kerastase-usa.com
Miss A
51.745884805E12 28/04/2025
Favorite hair ritual
[This review was collected as part of a promotion.] I love the gentleness , fragrance and protection that this gives my hair
Originaly posted on kerastase-usa.com
Dee123
41.745848808E12 28/04/2025
Works well
I recently purchased this product for the first time and was not disappointed. It left my hair soft and manageable and smelling great!
Originaly posted on kerastase-usa.com
CarlaC
51.745387107E12 23/04/2025
Impressive!!!
[This review was collected as part of a promotion.] I've only just started using this, but I already
love how lightweight it feels on my hair. It
doesn't leave any residue, and my hair feels
soft and smooth after styling. There's also a
lovely subtle scent that's not overpowering
Excited to see long-term results with heat
protection!
Originaly posted on kerastase-usa.com
Anonymous
51.745186409E12 20/04/2025
Exactly what I was looking for
[This review was collected as part of a promotion.] This thermique proctector really leave my hair smooth without any sensation of it being burnt
Originaly posted on kerastase-usa.com
Anonymous6
11.745336249E12 22/04/2025
Disappointed
Hoping this would work however could not get past the smell
Originaly posted on kerastase-usa.com
Reply from Consumer Care Center
Hi Anonymous6, we appreciate you reaching out about Defense Thermique Heat Protecting Spray. We are sorry to hear you are not a fan of the fragrance. Your feedback is valuable to us and will be shared with the appropriate teams for review. It is our hope that you will continue to explore the many products we offer with greater confidence and satisfaction in the near future.
Ana3012
51.744941605E12 17/04/2025
Excellent product
This product makes my hair so soft and shine. Even I use hair dye my hair keeps soft and shiny when I use this product
Originaly posted on kerastase-usa.com
AnnieG
51.744810208E12 16/04/2025
Favorite heat protector
I Love this heat protector. It smells so good and protects my hair. Leaves my hair smooth without frizz.
Originaly posted on kerastase-usa.com
Miss Jeanette
51.744810208E12 16/04/2025
Love this product!
Love the way my hair feels after using it plus it smells good!
Originaly posted on kerastase-usa.com
K10inNH
51.748652138E12 30/05/2025
Love this product and the scent is so nice!
During Covid, I got the virus and as a result, my thick hair started falling out. I was devastated and a friend turned me onto the Kerastase Genesis line. I have used it ever since because it restored my hair back to the thickness that it once was (maybe even more so). I have since recommended this line to SO MANY of my friends (in their 50's) who are suffering from hair loss, and they, like me, don't regret purchasing this!
Originaly posted on kerastase-usa.com
Beachbum
51.744740023E12 15/04/2025
Live this stuff
[This review was collected as part of a promotion.] I absolutely love this spray smells amazing and makes my hair look great.
Originaly posted on kerastase-usa.com
Cheri S
51.747959614E12 22/05/2025
So far, so good
I have recently begun using Kerastase products as my fine, thin, color-treated hair has been looking scary! I really like the way this product smells and the way my hair feels; time will tell if the heat protection makes a difference in my ‘do!
Originaly posted on kerastase-usa.com
Oks1212
51.74430171E12 10/04/2025
the BEST
This is the best heat protectant leave in conditioner. i have super fine and somewhat dry hair, this product makes my hair look like it was professional styled on a supermodel. I always have 2 bottles as back up. Also smells absolutely amazing
Originaly posted on kerastase-usa.com
YvetteV
51.744308908E12 10/04/2025
Best MilkSpray out there!
This is a great out the shower, use while still wet product I use not only on myself but my son who is growing out his hair. Love the way it sprays. Gets all over coverage when using.
Originaly posted on kerastase-usa.com
Aquirogar02
51.744299011E12 10/04/2025
Love the Defense Thermique Heat Protecting Spray!
[This review was collected as part of a promotion.] I really liked the Defense Thermique Heat Protecting Spray! It leaves my hair feeling soft and provides amazing protection. After using it with my blow dryer or flat iron, my hair looks so much shinier and smoother. The best part is the incredible smell—it’s so refreshing! I definitely recommend it for anyone who wants to protect their hair while keeping it sleek and shiny.
Originaly posted on kerastase-usa.com
Kshep76
51.744299011E12 10/04/2025
Works great!
[This review was collected as part of a promotion.] I like this heat protectant. I thought it would be too thick or feel greasy, but it doesn't. I use after I towel dry my hair, then blow dry.
Originaly posted on kerastase-usa.com
Krista G
41.744240506E12 09/04/2025
Review
It’s a good product, helps with heat protection and smells nice
Originaly posted on kerastase-usa.com
Vicky G
31.744296335E12 10/04/2025
Meh
[This review was collected as part of a promotion.] I did not find this leave in particularly helpful untangling my hair nor did I care for the scent.
Originaly posted on kerastase-usa.com
Reply from Consumer Care Center
Hello Vicky G, thanks for sharing your feedback on our Defense Thermique Heat Protecting Spray. We strive to deliver products that exceed the expectations of our consumers, therefore, we always welcome all feedback, whether positive or negative. Your feedback allows our team the opportunity to improve our products. We thank you for the time you have taken to share these comments.
Leela78
51.743983105E12 06/04/2025
My go-to heat protectant
I won't go without this heat protectant. It's absolutely perfect because it's very lightweight, it smells amazing, and it doesn't make my hair greasy.
Originaly posted on kerastase-usa.com
AnnaVkl
51.743775209E12 04/04/2025
Very good
[This review was collected as part of a promotion.] This is a really good product, high quality. It doesn't weigh down the hair. After using it, the hair is soft and shiny.
Originaly posted on kerastase-usa.com
Lilo07
51.743713131E12 03/04/2025
Defense termique
[This review was collected as part of a promotion.] I hope it protects my hair. I'm loving this line is perfect
Originaly posted on kerastase-usa.com
LJohnson
41.743699615E12 03/04/2025
Nice smell and texture
Smells nice. Doesn’t leave my hair feeling tacky like my previous heat protectant. Too early to know if it’s keeping my hair from getting damaged, but I’ll stick with it long enough to find out. Will be 5 stars if it’s doing its job.
Originaly posted on kerastase-usa.com
Hurley
51.743689712E12 03/04/2025
Smells beautiful
This product conditions and protects your hair. It also smells beautiful. You can still smell it a few days after.
Originaly posted on kerastase-usa.com
JMendez
11.74368881E12 03/04/2025
Did NOT like
I have thin, 3a/3b curls, oily scalp usually and dry ends. I do blow-dry my hair after every wash because it's easier to manage. The nozzle of this spray bottle is so awful considering how expensive this product is. It dispenses the product in a stream which does not work for me, I have tried to spray from afar and it wastes too much product. I have also tried to spray it on my hands to then scrunch it into my hair and that also did not work. I also tried to spray it aiming directly at the ends and after blowdrying, my hair was so greasy and weighed down. I know my hair and I know it's because the bottle dispenses too much product. It's not the result you want when you have thin hair and your scalp is already greasy. You either get too much or too little with this applicator. It also caused me to have frizz. I should've returned this when I had the chance or given it away. I still have about 80% of the bottle left. I wanted to love it because I do enjoy the genesis serum but I will never buy a spray heat protectant again.
I bought this along with the Extentioniste Thermique Length Care Gel Cream to compare. And I love the cream better than this spray. The cream is easier to apply because you can control how much you use. My hair is smoother and bouncier. I bought the whole Resistance Therapiste line and use it after every wash and my hair is noticeably better. It's not burned or damaged with styling tools and after my last hair cut 4 months ago, I have not noticed any split ends. I would recommend a cream heat protectant versus a spray one.
Originaly posted on kerastase-usa.com
Jen Kay R
51.743596112E12 02/04/2025
Perfect for combing wet blond highlighted hair
As anyone who regularly highlights their hair blond knows, combing it out after washing can be a nightmare. With fragile tangles everywhere this spray allows your brush (or comb) to gently glide through. As a de-tangeler it is amazing and smells lovely while not leaving a heavy residue (I have thin fine hair) and provides heat protection. I LOVE this product and I have tried them all!
Originaly posted on kerastase-usa.com
Kerastase Only User
41.743509712E12 01/04/2025
Perfect for Finer Hai
I didn't believe much products that claimed to add volume to hair, until this one. It far exceeds that. It makes my fine hair look fuller and thicker! Very impressed!
Originaly posted on kerastase-usa.com
Mrs Payne
51.743299105E12 29/03/2025
It gets Better!!
There is nothing better than this!!! Absolutely love this hair product!
Originaly posted on kerastase-usa.com
Pretty12
51.747959612E12 22/05/2025
I love Thermique Heat Protecting spray
[This review was collected as part of a promotion.] I love Thermique Heat protecting spray, it's light on my hair and protects my hair from my heated styling tools
Originaly posted on kerastase-usa.com
ReneeK
51.742940009E12 25/03/2025
Smooth
This product really helps protect my hair from blow drying it every day.
Originaly posted on kerastase-usa.com
KJ4547
51.743012908E12 26/03/2025
BEST Anti-Frizz Styling product ever!!
The BEST styling, anti frizz, heat protecting product I have ever used! It absolutely does NOT leave hair tacky and sticky like hairspray, like another reviewer said. I think that person must have been reviewing a different product by mistake. This leaves your hair so smooth, free of frizz, easy to blow dry, shiny, and it holds a blow dry so well! THE BEST!! Buy it!!
Originaly posted on kerastase-usa.com
KPro123
21.743019603E12 26/03/2025
Bad Jet Spray
I don’t like the way it sprays… it’s like a fine jet and doesn’t give good coverage. I end up having to spray multiple sprays in my palm and then work it through the hair
Originaly posted on kerastase-usa.com
Reply from Consumer Care Center
Hi there, we appreciate your feedback on our Defense Thermique Heat Protecting Spray. We understand how disappointing it is to have issues dispensing the product. We make every effort to provide the highest quality products for our consumers and we will be sure to pass your comments along. It is our hope that you will continue exploring our products while finding greater satisfaction in the results they deliver.
Tabetha
51.742595311E12 21/03/2025
Love. This!
Excellent product - my fave for days I blow dry. Makes my dry hair feel silky and strong.
Originaly posted on kerastase-usa.com
Halley kat
51.742697906E12 22/03/2025
My go to
[This review was collected as part of a promotion.] This has been my go to for years! Super light, not greasy and smells amazing.
Originaly posted on kerastase-usa.com
Lina92
51.742498109E12 20/03/2025
Love is delicious, it leaves my hair so pretty.
Love is delicious, it leaves my hair so pretty. Les Rasta se is the best
Originaly posted on kerastase-usa.com
DuckieFox
51.742398207E12 19/03/2025
Great for detangling.
I have just started using this product, but so far I like it. It really helps with detangling and smoothing hair. It doesn’t make my hair as shiny as I would like, but I like how it helps with frizz.
Originaly posted on kerastase-usa.com
Sweet2
51.74238561E12 19/03/2025
Great product
This is a solid product for heat protection and damage prevention
Originaly posted on kerastase-usa.com
Cali425
51.742279405E12 18/03/2025
Protection without Weight
[This review was collected as part of a promotion.] Love this for my fine hair! Doesn’t weight my hair down and blow out lasts for 3-4 days. Highly recommend
.
Originaly posted on kerastase-usa.com
Anonymous
51.742257805E12 17/03/2025
Great Finishing Product!
Wonderful product; hair feels silky smooth. Highly recommended.
Originaly posted on kerastase-usa.com
Mh7878
51.742170505E12 16/03/2025
Love it!
[This review was collected as part of a promotion.] Favorite heat protector! Light and yet moisturizing!
Originaly posted on kerastase-usa.com
Mini12
51.742137213E12 16/03/2025
Favorite heat protectant spray
Hands down best protectant and smells amazing! Makes your hair feel silky and shiny
Originaly posted on kerastase-usa.com
Maridds
51.742252406E12 17/03/2025
Must have
The best heat protection I have ever used. My hair is smooth and soft.
Originaly posted on kerastase-usa.com
Grace111111
51.742219112E12 17/03/2025
Heat protectant
I use hot tools about 3 days a week. After using this product to have no additional heat damage. Does not make my hair greasy or weighed down, but I don’t use it on my roots.
Originaly posted on kerastase-usa.com
PaolaD
51.742061612E12 15/03/2025
My hair looks different after blowing
[This review was collected as part of a promotion.] I loved the fragance and the texture of the product.
Originaly posted on kerastase-usa.com
Anonymous
51.741708817E12 11/03/2025
The Perfect Products
This product is perfect alongside your flat iron and Humid Weather! My hair looks and feels amazing using Kerastase. After years of trying different products to fight the frizz - I finally found the cure!
Originaly posted on kerastase-usa.com
Anonymous
51.741652109E12 10/03/2025
Love it.......... . ............................
Smells good......................................
.....
Originaly posted on kerastase-usa.com
AnnaSz
51.741392004E12 07/03/2025
Great heat protectant, leaves hair very soft
[This review was collected as part of a promotion.] I have fine hair and I love using this after I shower to blow dry my dry. It leaves my hair soft and does not weigh it down.
Originaly posted on kerastase-usa.com
Cbear2001
51.741573805E12 09/03/2025
Great protector
It works great and smells amazing!! Definitely buy!!
Originaly posted on kerastase-usa.com
Defense Thermique 150ml
Kerastase - Genesis
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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1 (877) 625-4735 