

✨ Strengthen your roots, flaunt your glow 💫
Kerastase Genesis Hair Serum is a daily, silicone-free treatment designed to reduce hair fall by 97% due to breakage. Infused with ginger, caffeine, and arginine, it strengthens weak, brittle hair by stimulating roots and improving resistance. Its lightweight, non-greasy formula absorbs quickly, making it ideal for normal to dry weakened hair. Use consistently for 6 weeks to experience nourished, healthier, and more resilient hair.

















| ASIN | B086TPQJTT |
| ASIN | B086TPQJTT |
| Best Sellers Rank | #786 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #14 in Hair Regrowth Treatments |
| Brand Name | KÉRASTASE |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,832) |
| Hair Type | All |
| Item Form | Oil |
| Item Volume | 3 Fluid Ounces |
| Liquid Volume | 3 Fluid Ounces |
| Manufacturer | Kerastase |
| Manufacturer | Kerastase |
| Number of Items | 1 |
| Product Benefits | Reduces hair fall by 97% and strengthens roots with Ginger & Caffeine. Silicone-free, weightless & non-greasy. |
| Product Dimensions | 1.93 x 1.93 x 6.1 inches; 8.78 ounces |
| Scent Name | floral |
| UPC | 884486448149 |
| UPC | 884486448149 |
| Unit Count | 3.04 Fluid Ounces |
L**Y
Amazing
THIS PRODUCT IS MY HOLY GRAIL. It works so well and smells so good. It makes your hair shiny and soft. Only thing is it is on the expensive side.
K**T
Game-Changer for Weak & Damaged Hair!
I’ve been using the Kerastase Genesis Hair Serum – Daily Strengthening Treatment for a few weeks now, and the results are incredible. This serum has truly strengthened my weak, damaged hair and given it a noticeably healthier look and feel. The texture is lightweight and absorbs instantly without any greasy residue. I use it daily, and it nourishes my hair from root to tip while helping reduce breakage. My hair feels stronger, smoother, and more resilient — even on days after heat styling. I also love that it’s easy to use and doesn’t weigh my hair down. A little goes a long way, and the results speak for themselves. If your hair is fragile, prone to breakage, or just needs a boost of nourishment, this serum is definitely worth trying! Highly recommend!
A**R
Very Good Product
This product I am using from 2 weeks,my actual purpose was to control hairfall,and surprisingly ots working,my hairs start looking more healthy than early,I an so happy with my purchase,I just wish it could be less in price,otherwise product is very good,the packaging is good,and the dropper is very helpful so you can just feel serum in droppers and directly apply in scalp,so it helps a lot.
L**N
reducing hair fall
I have used 1 entire bottle and now repurchased. I suffered TE hair loss from vitamin deficiency/anemia. I used only 2 doses instead of the instructed 4 to stretch the product a bit longer. I noticed a dramatic reduction in hair fall once inching he it bottle. I previously used the ordinary peptide serum with no noticeable results. This leads me to believe that this serum in addition to other lifestyle changes is actually helping retain hair on scalp. I have also noticed my edges looking fuller again.
A**R
The Only Hair Product That Actually Worked for Me
I’m not usually the type of person who writes reviews for products I order, but I really wanted to share my honest experience. Postpartum completely damaged my hair, and I was desperate to find something that actually worked. I tried Nutrafol and took it consistently for three months, but nothing changed. It felt like a waste of both time and money—and honestly, I hated the taste too. If you’re thinking about trying argan oil, rosemary oil, or any of those “magic” hair growth oils, I’ll say this: if you’re prone to oily roots like I am, you’re probably not going to like them. I hate the feeling of oily roots, so putting oil on my scalp was never something I could stick with. I’m currently on my second bottle of this serum, and when my sister asked me, “What are you doing to your hair?” I went back and looked at my before-and-after photos. I was shocked—I didn’t even realize how much new hair growth I had. My hair looks so much denser, healthier, and thicker, and it smells soooo good. I’m obsessed with the scent, and I’ve been getting so many compliments. I use it almost every day, and one bottle lasts me about a month and a half. It is a bit pricey, but I’m honestly tired of wasting money on random $20–$30 products that don’t work. I will always recommend this product to every girl I know. I comment under posts, reels—anything about hair treatments—and recommend this product to anyone.
S**E
Genesis Serum
My Haircare Holy Grail! I’ve been using this product for years now and it continues to impress me. It has a lightweight almost waterlike consistency that makes it easy to apply after every wash. One bottle usually lasts me a few months though you might run out faster with daily use. The fragrance is a bit strong for my liking but the results make up for it. The U.S. version doesn’t contain aminexil though it still works wonderfully. While I can’t say much about actual hair growth I’ve definitely noticed less hair fall since I started using it. I usually pair it with the Kerastase 8H Overnight Serum. Definitely worth giving it a try
K**L
Not greasy, but also possibly not effective
I bought this for my hair regrowth journey because I heard it helped. I personally didn’t see a difference however I do appreciate the light smell it had, and the fact that it was not greasy.
M**L
Strong Scent
I hope this works, since it has a strong perfume scent that I can barely tolerate. Will continue using until gone with high hopes for new hair growth.
S**A
رائع
R**A
È un prodotto ottimo, mantiene le promesse. Effettivamente ho notato l' effetto di miglioramento sulla caduta dei capelli
V**E
J'ai acheté la gamme entière de cette marque pour un problème de chute de cheveux anormale. Le shampoing, l'après shampoing et ici le sérum. C'est un peu plus contraignant car il faut mettre ce sérum grâce à une pipette sur le cuir chevelu, raie par raies tous les matins ou soir au choix. J'ai pu constater au bout d'un mois une nette amélioration sur ma chute des cheveux mais j'utilise la gamme entière. Il y a des résultats assez significatifs. C'est une gamme assez chère mais c'est plus un soin anti chute qu'une gamme pour la brillance ou la couleur. Le sérum se présente dans un flacon en verre avec une pipette pour mieux répartir le produit sur le cuir chevelu. En l'utilisant tous les soirs depuis un bon mois il m'en reste encore. Il faut bien l'appliquer sur l'ensemble du crâne et masser. Ne pas utiliser sur les cheveux sinon ça risque de coller un peu. Pour ce sérum je dirais qu'il a amélioré mon problème. Je valide. Bon rapport qualité prix. Livré rapidement dans une boîte en carton et arrivé sans cassé. Parfait pour moi.
C**N
Purtroppo il prodotto è arrivato con l ampolla spaccata ed è fuoriuscito il siero
F**E
Ce produit est bien et facilite, en plus de la repousse, le coiffage
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