

💥 Stop hair fall before it starts — Strengthen, nourish, and shine with Genesis!
Kerastase Genesis Hair Serum is a silicone-free, daily strengthening treatment designed to reduce hair fall caused by breakage. Enriched with ginger, caffeine, and arginine, it improves hair resistance and scalp circulation. Lightweight and non-greasy, it nourishes weakened hair without residue. Clinically, 97% of users experience less breakage, making it an essential part of a complete hair care routine for healthier, stronger hair.


























| ASIN | B086TPQJTT |
| Best Sellers Rank | #1,191 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #13 in Hair Regrowth Treatments |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,526) |
| Manufacturer | Kerastase |
| Product Dimensions | 1.93 x 1.93 x 6.1 inches; 8.78 ounces |
| UPC | 884486448149 |
A**1
Miracle Worker!!!
I love everything about this product! Pricey but sooooooo worth it!!!! Used as directed and within the first week I started noticing a difference. My hair is softer, way less breakage, hair looks healthier, helped the hair growth. Smells really good too. I wish I would’ve taken before and after pictures.
R**A
Kerastase Génesis Hair serum
Excellent product. Since I use it I notice less loss and my hair feels stronger and healthier. It doesn't leave hair greasy and smells very good. It's worth it. 💖
H**Y
Best hair serum I have tried!
We have only been using this for a few weeks and can already tell a difference in the texture of my hair. There is growth and is fuller to touch. The bottle itself is such larger than I thought and you only need a bit a day. It makes my hair look shiny and healthy for sure. I love the quality of product and can tell that my hair is getting thicker already!
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.
A**A
Excellent for weak hair
love this serum. It makes my hair feel stronger, softer, and reduces breakage within the first few weeks. It’s not greasy and absorbs quickly. The scent is light and pleasant. Perfect if you have weakened or thinning hair. I would definitely buy it again
I**N
Hair
WELL YES, but I think there are better and more affordable, each hair is different maybe it works better on your hair so if you can buy it do it, the smell is good, something I like is that it can put it with clean hair and does not leave the hair greasy or anything, it is super soft, IF YOU CAN try it!
D**C
The best product for my thinning hair!
Stronger Hair Starts at the Root – A Must-Have for Anyone Experiencing Hair Fall I’ve been using the Kérastase Genesis Hair Serum for just over a month, and the results have been nothing short of amazing. As someone who struggles with hair fall due to breakage, I was looking for something that could strengthen my hair without weighing it down—and this serum delivered on every front. The formula is lightweight and non-greasy, which makes it perfect for daily use. I apply it to my scalp after towel-drying my hair, and it absorbs quickly without leaving any residue. The scent is subtle and fresh—just enough to feel luxurious without being overpowering. What really impressed me is how noticeably stronger and healthier my hair feels. After consistent use, I’ve seen a significant reduction in hair fall when brushing or styling. My scalp feels more balanced, and my hair looks fuller and more resilient. ✅ Reduces breakage-related hair fall ✅ Lightweight, silicone-free formula ✅ Easy to apply and absorbs quickly ✅ Strengthens and nourishes from the root If you’re dealing with weakened or thinning hair, this serum is absolutely worth the investment. It’s a salon-quality treatment you can use at home—and it truly makes a difference. I’ll definitely be repurchasing!
A**D
great product
this hair serum actually works. escpecially if you have low porosity hair and does not get really greasy.
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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