Like this

I do find this product is useful for blow drying and I have course hair that can be wavy

Originaly posted on  kerastase.ca

Detangkes and protecs

[This review was collected as part of a promotion.] I wear this product before drying or styling my hair with heat tools

Originaly posted on  kerastase-usa.com

Favorite heat protector

I love this product. My hair feels detangled and soft after I use it.

Originaly posted on  kerastase-usa.com

Love

Smells so good and helped my hair be healthier 10/10

Originaly posted on  kerastase-usa.com

Must-have!

[This review was collected as part of a promotion.] Excellent spray to keep hair from frying during a blow dry and/or using high-heat tools. I apply this about halfway through drying and feel like it really helps.

Originaly posted on  kerastase-usa.com

Best leave in

[This review was collected as part of a promotion.] Easy to apply, smells great and lasts a long time.

Originaly posted on  kerastase-usa.com

Keeps hair protected

[This review was collected as part of a promotion.] I love this protectant. It keeps my hair from frizz and static as well! Worth it!

Originaly posted on  kerastase-usa.com

Little goes a long way and smells anazing

Love this heat protection spray. Little goes a long way and smells anazing

Originaly posted on  kerastase-usa.com

I will repurchase

[This review was collected as part of a promotion.] Great heat protector for you hair, I love the smells, very clean like smell and it’s light weight

Originaly posted on  kerastase-usa.com

Good Heat Protecting Spray

Good heat protecting spray. Not heavy or an overwhelming smell. A little hard to get out once you are at the end of the bottle.

Originaly posted on  kerastase-usa.com

Love this product!!!

Love this product. It’s a very light product that doesn’t weigh my hair down.

Originaly posted on  kerastase-usa.com

AMAZING

I spray this in my hair after I wash and I can easily airdrop and my hair feels and smells amazing

Originaly posted on  kerastase-usa.com

Best leaving

[This review was collected as part of a promotion.] Love, the product that helps tingled my hair and keep it. Nice and healthy.

Originaly posted on  kerastase-usa.com

Genesis Defense

[This review was collected as part of a promotion.] Absolute game changer. Protects my hair from heat styling and Makes my hair feel softer after styling

Originaly posted on  kerastase-usa.com

Great pre blowdry spray

This is a great pre blow dry treatment and it smells great

Originaly posted on  kerastase-usa.com

I use it a lot

[This review was collected as part of a promotion.] Love it. Use it 3x a week and it’s great for blowout. Hair feels healthy

Originaly posted on  kerastase-usa.com

Love the Pink bottle!

This really protects my hair from blow dry heat! Love it!

Originaly posted on  kerastase-usa.com

Great product

[This review was collected as part of a promotion.] This entire system used together is really great. Not only does this spray smell really good, it does its job! It really is best to use the system together because that is where I find the best results.

Originaly posted on  kerastase-usa.com

Genesis thermal spray

It smells nice , but it leaves my hair at the root slightly greasy

Originaly posted on  kerastase-usa.com

Great

Love this for the protection without weighing my fine hair down.

Originaly posted on  kerastase-usa.com

Love the leave in

this is a great leave in conditioner as well a heat guard for my blow out.

Originaly posted on  kerastase-usa.com

Leave in product

Leaves my hair super soft and smells great! It doesn’t feel heavy.

Originaly posted on  kerastase-usa.com

Stronger, softer hair and less shedding

I’ve been using the Genesis Defense Thermique heat protectant and I really like how it makes my hair feel. It leaves it soft and smooth without making it heavy or greasy. My hair looks healthier and feels more manageable when I style it. I’ve also noticed less hair fall since I started using it, which was a big concern for me. It feels like my hair is stronger and not breaking as much as before. One thing I really prefer is the spray bottle. It distributes the product more evenly and is much easier to use compared to the pump version. Overall, it’s been a really good addition to my routine and something I’ll keep using.

Originaly posted on  kerastase-usa.com

Awesome

Great product. Recommend this product for dry colored hair.

Originaly posted on  kerastase-usa.com

Hair improvement

This product works amazing has really helped my jair goals

Originaly posted on  kerastase-usa.com

Heat protector

Lo e how this product smells can not wait to try it on

Originaly posted on  kerastase-usa.com

Love this product

[This review was collected as part of a promotion.] This product has made my hair softer and healthier

Originaly posted on  kerastase-usa.com

Meh

[This review was collected as part of a promotion.] Heat protenctants are important, but this one is not worth the price. I can't tell the difference between this and other products.

Originaly posted on  kerastase-usa.com

Heat protector

This is just the best heat protector I love it makes my hair glossy and soft

Originaly posted on  kerastase-usa.com

Great leave in conditioner

2nd time purchased this leave in conditioner the smell is fabulous and it helps when I use my blowout

Originaly posted on  kerastase-usa.com

Flawless

The product makes me hair feel smooth like butter and protects it from breaking and it works very well. I’m so happy with all of my products.

Originaly posted on  kerastase-usa.com

Amazing Scent, Feels Great

Unsure what it does, but I love it! Smells GREAT!!

Originaly posted on  kerastase-usa.com

Love

[This review was collected as part of a promotion.] I have 3b hair pattern with fine hair texture. I love this heat protectant. I've been using it for a couple years now and its all I use. Don't let the price scare you. It lasts a while. At least for me. I use this about once a week.

Originaly posted on  kerastase-usa.com

Smells amazing.

I am using this prior to blow drying. Using night repair and scalp treatment as well along with pink and purple keratase shampoo and conditioners. This is probably the only one I would not re purchase.

Originaly posted on  kerastase-usa.com

Luv!

I use this to smooth a d condition my hair as I blow dry. It gives my 2nd day hair and extra umf.

Originaly posted on  kerastase-usa.com

Good

This is good and lasts for a long time. The smell is enduring and it does help with lots of hair breakages through daily blow drying.

Originaly posted on  kerastase-usa.com

Love this!!

[This review was collected as part of a promotion.] Doesn't weigh hair down. Smells great! I will buy this again!

Originaly posted on  kerastase-usa.com

The Tea

You have no idea how much I love this product 💕💕💕

Originaly posted on  kerastase-usa.com

My hair looks and feels great

[This review was collected as part of a promotion.] happy enough to leave a review to say I am absolutely in love with this products. I can’t stop using it weekly and I can’t wait when it’s time to use my heat protecting spray after a nice shower! The smell of this product is also unforgettable! Just buy it

Originaly posted on  influenster.com

Love the protection!

Great for use on my longer hair to protect from breakage—-my stylist said that it is important to use exceptional products when we spend so much in a hair appointment—these products are the best!

Originaly posted on  kerastase-usa.com

Amazing, Fabulous Hair Care

[This review was collected as part of a promotion.] I’ve been using Kerastase Genesis Defense and I’m genuinely impressed. It leaves my hair feeling stronger, smoother, and noticeably less prone to breakage. It’s lightweight, doesn’t weigh my hair down, and adds a healthy shine. Definitely a must-have for anyone dealing with weak or fragile hair!

Originaly posted on  kerastase-usa.com

Perfect protection

I use it whenever I blowdry or flat iron my hair that also has semi permanentcolor. I never have split ends or damage.

Originaly posted on  kerastase-usa.com

Save your hair

Love this for protecting my hair from damage while using the blow dryer and flat iron! It works.

Originaly posted on  kerastase-usa.com

Magic in a bottle

I have been using this for ) months now and have notice such a difference in the health of my hair! This is magic in a bottle. It’s helped me save my hair from the heat and the bonus is the smell is amazing! I can’t see my hair routine without this bottle

Originaly posted on  kerastase-usa.com

There is hope!

Ever since I bought this product I’ve been super happy with how much softer my hair is!

Originaly posted on  kerastase-usa.com

Nothing to say about this product aaaaaaaaaaaaaaaa

[This review was collected as part of a promotion.] Nothing to say about this product aaaaaaaaaaaaaaaa

Originaly posted on  kerastase-usa.com

Makes your hair feel like silk

Amazing project product. Not too heavy and smells amazing

Originaly posted on  kerastase-usa.com

amazing

[This review was collected as part of a promotion.] i love, love, love this product! i feel like my hair dries so much better whenever i use it.

Originaly posted on  kerastase-usa.com

Great heat protectant

[This review was collected as part of a promotion.] I use this on damp hair before blowdrying and it always makes my hair smell good and feel soft.

Originaly posted on  kerastase-usa.com

Protects hair from heat

[This review was collected as part of a promotion.] Spray in product. Detangles wet hair and drys soft not frizzy

Originaly posted on  kerastase-usa.com

Hydrated

[This review was collected as part of a promotion.] Application was easy since you squeeze the bottle. The scent is amazing and made my hair smell very good. I noticed my hair was immediately glowing and hydrated with less frizz, I recommend using this product.

Originaly posted on  influenster.com

Hydration and softness!

This really keeps my hair soft and hydrated since I wash and blow dry it almost every day!

Originaly posted on  kerastase-usa.com

Great Protection for Heat Treated Hair

[This review was collected as part of a promotion.] This product is great for protecting hair from high heat, such as blow drying. It is however, a bit heavy for thin, fine, straight hair. You must use sparingly. A couple sprays is all you need. The scent is wonderful. This is a great addition to any hair care routine.

Originaly posted on  kerastase-usa.com

Terrible smell

Terrible smell. Manly or chemically. Also leaves a film on the hair and doesn’t help with anything. Kerastase find more feminine smells pls. Cannot explain how bad this smells

Originaly posted on  kerastase-usa.com

Love it BUT

This detangles my hair so well!! My brush just glides through it. Only thing I don't like is that it's thicker and I wish it was a pump instead of spraying it

Originaly posted on  kerastase-usa.com

Best heat protectant!

Keeps my hair safe from heat and helps it keep its shine!

Originaly posted on  kerastase-usa.com

amazing

Love this stuff! Light weight and nice scented heat protectant. I use this every time I blow dry my hair.

Originaly posted on  kerastase-usa.com

Love the whole Genesis line

Smells so goood second time repurchasing and no frizz

Originaly posted on  kerastase-usa.com

Best in it's category!

[This review was collected as part of a promotion.] I've tried every brand of heat protection available, and I just keep coming back to this one! It's the best!

Originaly posted on  kerastase-usa.com

Great Heat Protection

This spray does not weigh my fine hair down and gives a smoothing effect. Sometimes I use it without heat to smooth/tame frizz. As a heat protectant it’s amazing!

Originaly posted on  kerastase-usa.com

Works great on my dry hair

The product works well on my dry hair and reduces the time it takes to heat style my hair. Also reduces the damage caused by heat tools. However the smell is too strong and lingers too long

Originaly posted on  kerastase-usa.com

Great Heat Protectant

I've purchased this heat protectant three times now and it's easily become one of my favorite products. It helps add density to my hair in addition to helping with the inevitable heat that I use to dry and style my hair. I feel like this has really helped with breakage and split ends and I will continue to use it!

Originaly posted on  kerastase-usa.com

Really liked!

[This review was collected as part of a promotion.] I really like this! when i shower and use my blowout brush, i use this and i feel like it helps my hair from feeling damaged. it also smells really good and is easy to use.

Originaly posted on  influenster.com

Best leave in spray!

Leaves your hair super smooth! 2 pumps for each side is all you need!

Originaly posted on  kerastase-usa.com

Heat Protector

I love this stuff!! Smells great and leaves my hair so smooth and soft looking

Originaly posted on  kerastase-usa.com

Best leave in & heat protectant

The genesis leave in heat protectant pray will never ru out in hair products rotation, I love it that much

Originaly posted on  kerastase-usa.com

Gf loves this

I got this for my girlfriend, and she loves it. Will be purchasing again.

Originaly posted on  kerastase-usa.com

Won't style without it

[This review was collected as part of a promotion.] Noticed a huge difference with my drying and styling when using this and the peace of mind that my hair isn't being damaged

Originaly posted on  kerastase-usa.com

Great for Styling

Loved this! Awesome heat protection and it smells soooo good!!

Originaly posted on  kerastase-usa.com

I loved it

I absolutely love the Genesis line from Kérastase. It leaves my hair feeling softer, stronger, and full of shine without weighing it down. I’ve noticed less frizz and overall healthier-looking hair. Definitely recommend

Originaly posted on  kerastase-usa.com

WORKS

I LIKE THIS BECAUSE I THINK IT ACTUALLY IS WORKING ON MY HAIR AND MY HAIR WAS BREAKING SO BAD ON ONE SIDE

Originaly posted on  kerastase-usa.com

Lightweight Protection with an Amazing Scent

[This review was collected as part of a promotion.] I’m obsessed with Genesis Defense Thermique Heat Protecting Spray by Kérastase. Not only does it leave my hair feeling soft and protected, but the smell is absolutely amazing — fresh, clean, and luxurious without being overpowering. It’s lightweight and doesn’t make my hair feel sticky or weighed down, even when I’m blow-drying or using hot tools. My hair looks smoother, less frizzy, and noticeably healthier after styling. It gives me confidence that I’m protecting my hair while still getting a beautiful finish. Highly recommend!

Originaly posted on  kerastase-usa.com

I really like this!

I am a firm believer in the power of heat protecting spray and I really like this one as it does not weigh my hair down.

Originaly posted on  kerastase-usa.com

Amazing

[This review was collected as part of a promotion.] I have never had a hair product that works like this one! I can’t live without it!

Originaly posted on  kerastase-usa.com

My very-favorite-can’t-live-without “K” product

I use the whole Genesis collection on the regular. However, if I use a different collection to shampoo & condition, I will still use this leave in treatment afterwards. It’s my favorite product they make. Always, I have one on my bathroom counter, another one in my travel bag, and always at least one back up in the closet! It just works!! No frizz. Heat protected, but still great if just air dried. And it smells awesome!

Originaly posted on  kerastase-usa.com

My Favorite Thermique

[This review was collected as part of a promotion.] I love the whole Genesis line for my fine blonde hair but the thermique in this line I can’t do without. Great heat protection without weighing my hair down.

Originaly posted on  kerastase-usa.com

A Must Have!

[This review was collected as part of a promotion.] This product is the best! Heat protectant and leave in conditioner essentially. Highly recommend product for styling hair.

Originaly posted on  kerastase-usa.com

My hair

[This review was collected as part of a promotion.] I’ve been using this heat protectant for a few weeks now and I’m honestly impressed. My hair is naturally curly but has some damage from coloring and blow-drying, and this spray made a noticeable difference. It protects my hair without making it heavy or greasy, which is very important to me. After blow-drying, my hair feels smoother, softer, and looks shinier with less frizz. I also noticed less breakage when brushing. The texture is lightweight and the scent is beautiful but not overpowering.

Originaly posted on  kerastase-usa.com

The one that tops them ALL...

[This review was collected as part of a promotion.] This is the first product from Keratase I tried. I was looking for a good heat protector after decades of lightening my hair. I was hesitant of the price but I must say it's worth every penny. I've used it for almost a month now and noticed a CONSIDERABLE difference in the health, texture and appearance of my hair. The smell is fantastic and it's very nourishing yet lightweight. This product made me a believer in the line and I now have purchased 4 additional products in 2 different collections! Buy it!

Originaly posted on  kerastase-usa.com

Love the smell

[This review was collected as part of a promotion.] Best thermoprotector ever and smells delicious, also last for months just apply it on your hands then the hair.

Originaly posted on  kerastase-usa.com

Must Have

This product is a must have for dry hair that needs help!

Originaly posted on  kerastase-usa.com

Amazing

[This review was collected as part of a promotion.] [Employee of kerastase-usa] This product smells so good. And help me daily when i brush my hair.

Originaly posted on  kerastase-usa.com

Great leave in

[This review was collected as part of a promotion.] Great leave on conditioner and hair protection for compensated and heat damaged hair

Originaly posted on  kerastase-usa.com

I love

[This review was collected as part of a promotion.] [Employee of kerastase-usa] Excellent! I've been using it for a long time. Super lightweight, leaves no residue! I love it!

Originaly posted on  kerastase-usa.com

Go to heat protector

To start it smells soooo good, it’s lightweight yet protective. No complaints!

Originaly posted on  kerastase-usa.com

Life changing

[This review was collected as part of a promotion.] My new absolute favorite leave in conditioner! Smells so clean and expensive and leaves my hair feeling so soft and shiny. It doesn’t feel heavy on my hair and it definitely has helped me with hair breakage like no other. I will be buying this when I run out!

Originaly posted on  influenster.com

My go to styling product!

I have hair that's kind of frizzy and this really calms it down in the hair straightener process but still looks natural!

Originaly posted on  kerastase-usa.com

awesome!

[This review was collected as part of a promotion.] This product is absolutely great ! i love the way my hair look after using for almost couple of months ,,, its a big YES!

Originaly posted on  kerastase-usa.com

My Go-To Heat Protectant for Over 2 Years

I absolutely love the Kerastase Genesis Défense Thermique Heat Protecting Spray! It makes my hair feel so soft and smooth without weighing it down at all. My blowouts look shinier, less frizzy, and way more polished—and I’ve noticed a lot less breakage since I started using it. It smells amazing and just makes my hair look healthier overall.

Originaly posted on  kerastase-usa.com

Good not great

I don’t like the dispenser for this. Directions could be more clear on how to use. Is this only for blow dry or flat iron too?

Originaly posted on  kerastase-usa.com

Awesome!!

The smell is incredible, and the styling goes on smoothly. It’s amazing for thin hair.

Originaly posted on  kerastase-usa.com

Heavenly

Super easy to use, can tell a noticeable difference when brushing out my hair!! The smell is a great addition to the other benefits it offers as well! This whole brand has absolutely divine smells in every product 👃🩷

Originaly posted on  kerastase-usa.com

The best!

Not only did this smell divine but it makes your feel so amazing! My hair smells great AND feels so incredibly healthy!!!

Originaly posted on  kerastase-usa.com

Highly recommended

Highly recommended Highly recommended Highly recommended

Originaly posted on  kerastase-usa.com

Love!

This is the best spray ever! I have tried so many and it helps keep your cuticle sealed after you blow dry. Best heat protectant I have ever purchased.

Originaly posted on  kerastase-usa.com

A must

[This review was collected as part of a promotion.] Excellent for de-tangling. Some days this is only product I need.

Originaly posted on  kerastase-usa.com

Execional, nice product

[This review was collected as part of a promotion.] Muy buen product , my hair is beautiful after using the product

Originaly posted on  kerastase-usa.com

Obsessed with this one

[This review was collected as part of a promotion.] Love love love this product would definitely buy again! Not heavy on the hair and leaves my hair protected and feeling soft. No residue and super easy application!! Great for thin hair girls!

Originaly posted on  influenster.com

Wonderful product

This will protect your hair from here, like nothing else on the market

Originaly posted on  kerastase-usa.com

Easy to use heat protector

[This review was collected as part of a promotion.] I love this product because it’s a spray bottle as opposed to a squeeze bottle. It’s a lot easier to apply to my hair, and it smells light and lovely in my hair. I use it before a blow dry for best thermal protection on a regular basis. To be honest, I even use it when I don’t heat style my hair for general heat protection.

Originaly posted on  influenster.com