

🌟 Unlock your hair’s full potential — because your roots deserve the best!
Kérastase Genesis Hair Serum is a premium, sulfate-free daily treatment designed for weakened, thinning hair prone to loss. Enriched with Aminexil, Ginger Root, and Edelweiss Flower, it strengthens hair fibers from root to tip while activating scalp microcirculation to stimulate healthy growth. This 30-day regimen soothes irritation, reduces flakiness, and visibly slows hair fall, making it a top-rated choice among professionals seeking effective, luxurious hair care.





















| ASIN | B083JKPCFB |
| Benefits | Strengthening hair fibre from root to tip, the serum activates microcirculation of nutrients to stimulate healthy hair growth. |
| Best Sellers Rank | 325 in Beauty ( See Top 100 in Beauty ) 1 in Hair Serums |
| Brand Name | KÉRASTASE |
| Country Of Origin | Spain |
| Customer Reviews | 4.5 out of 5 stars 6,579 Reviews |
| Global Trade Identification Number | 03474636858002 |
| Hair Type | Thin |
| Hair type | Thin |
| Item Form | Liquid |
| Item Volume | 90 Millilitres |
| Item Weight | 30 Grams |
| Item form | Liquid |
| Liquid Volume | 90 Millilitres |
| Liquid volume | 90 Millilitres |
| Manufacturer | KERASTASE |
| Material Type Free | Sulphate Free |
| Number of Items | 1 |
| Product benefits | Strengthening hair fibre from root to tip, the serum activates microcirculation of nutrients to stimulate healthy hair growth. Product benefits Strengthening hair fibre from root to tip, the serum activates microcirculation of nutrients to stimulate healthy hair growth. See more |
| Scent | Unscented |
| Scent Name | Unscented |
| Unit Count | 90.0 millilitre |
A**A
My magic bullet
My starting point: - long-term commitment to Kerastase - I guess that’s why I’ve seen no ads and basically stumbled upon this serum during regular eyeballing of Kerastase catalogue. So I didn’t get any hype - I’m 31F with slightly highlighted fine blond hair and reactive scalp, that is healthy in remission and flaky/oily during flare-ups - after losing a lot of weight and a terrible long flu with 2 courses of antibiotics, I went into telogenic phase. I had my hands full of hair after every wash and actually had to unblock the drain. My scalp was itchy and flaky, my lengths were damaged and electrostatic, roots wouldn’t keep volume for more than a day - I tried everything: minoxidil, castor oil, scalp massage with a silicon brush, peelings, masks - you name it. It did slow the hair loss, but I still struggled Found this serum, and it’s day 10 of the course. Serum: - smell intensity: 8/10; some might find it very intense and I get it. For me it smells of an expensive aftershave and it doesn’t bother me much since I enjoy unisex perfume - texture: 10/10; thick serum that is very easy to measure and apply. You have enough time to distribute it before it goes dry, and the best part is that it actually doesn’t leave any residue and can even add a bit of volume. During first application I felt tingling for a short period - likely due to irritated scalp. Staring with second day, no more tingling - value for money: 10/10, but it’s tricky. If you apply it per instructions, one bottle will last about 2 weeks. That’s 1/3 of required 6 weeks, so you can easily multiply the cost by 3. At the same time, this serum turned out to be super efficient for me, and it very well justifies the cost. I’ve spent more time and money, trying other treatments - ease of application: 8/10. Instructions are clear, the applicator is sturdy and intuitive. It’s easy to measure and apply directly onto the scalp. You may need to adjust the quantity since the instruction says 3-4 doses (which is a lot) and if you are smart you can get it down to 2.5-3. Efficiency: I don’t usually review products halfway, but I’m so impressed with this serum already, so I couldn’t wait to share it. I notice no to very little hair fall. It’s even less than I normally have. Almost no hairfall during washing. My scalp went calm after the very first application and no more itching or flaking ever since. My hair holds volume. So overall I’m super impressed and this serum is exactly what I needed given my background
N**A
Hair goals 100
Great product! This hair serum smells amazing, feels lightweight, and has definitely reduced my hair fall. My hair feels stronger, smoother, and healthier without being greasy. Really impressed with the results and will definitely be purchasing again even though its pricey it lasts along time.
R**S
The best hair serum noticeable results from the first use
This is a standout hair serum highly effective and worth every penny. My hair has never looked better!
A**R
Great product hair fall has reduced
Great product and competitively priced at the time of purchase at just under £32 for the 90ml! Hair fall is much less and feels and looks healthier and thicker
C**E
Okay
Smell good. I have used few times maybe it is too short to prevent hair loss effects
T**D
Decent product. No issues.
My wife uses this. She has thick hair and ginds this hair serum works well.
K**A
Stopped hair fall
Smells amazing and it does really stop the hair fall , best thing I ever used . Long term use needed it’s expensive!
R**A
Did not work for me
Oh, how I wanted to love this product! I did everything right - patiently used 2 bottles, applied the right amount religiously and waited to see the results, as per so many positive comments. Unfortunately, there were none. Absolutely nothing has changed. I would also add that if you follow the instructions and use 4 pipettes (up to the line) on daily basis, it is impossible for the bottle to last as long as promoted. With all that, I am sadly resuming my search for ‘The’ hair growth serum.
Trustpilot
5 days ago
1 month ago