Kerastase Genesis Hair Serum | Daily Strengthening Treatment for Weak or Damaged Hair | Nourishes and Reinforces Hair | Anti-Breakage | Silicone-Free | For Weakened Hair | Serum Fortifiant

Stronger Hair Starts at the Root – A Must-Have for Anyone Experiencing Hair FallI’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 rootIf 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!

Why did you pick this product vs others?:I’m absolutely obsessed with the Kérastase Genesis Hair Serum — not just because it works wonders on my hair, but because it smells like pure luxury. Honestly, it’s the best smelling product I’ve ever owned, whether it’s hair, body, or anything else. The scent is fresh, subtly floral, and just so elegant — I find myself sniffing my hair all day!Beyond the incredible fragrance, this serum smooths frizz, adds shine, and makes my hair feel stronger, thicker, and healthier with every use. It’s lightweight and doesn’t leave any greasy residue, which is a huge plus.If you want a hair product that both performs beautifully and makes you smell amazing, this is it. I’ll definitely be repurchasing!

I absolutely love this serum! I started using it during a period of major hair shedding, and within a few weeks, I noticed a big difference—less hair in the brush and more strength at the roots. It’s lightweight, non-greasy, and smells amazing. I use it consistently on my scalp and it’s become a staple in my routine. If you’re dealing with thinning or breakage, this is the game-changer. Does not weigh hair down, adds shine, and leaves hair feeling softer. Worth every drop!

I’ve been using the Kérastase Genesis serum and it’s amazing. It smells delicious, feels lightweight, and makes my hair look so much healthier and shinier. It also leaves my hair super soft to the touch. I’ll definitely buy it again!

This is not really a serum. It is an alcohol-based watery liquid that is heavily fragranced, more like men’s aftershave than a hair serum. I was unable to apply it without getting it all over the place because of its watery nature. And the smell was just overpowering and lasted for days, and got all over my pillow, and made it impossible to wear my perfume. It also made my hair texture dry. It is my understanding that if you buy this outside the U.S. it is a proper serum, but some ingredient was outlawed in the U.S. or something so we get this weird, inferior product.

I have used this product for about 3 months now and i have seen significant results. My hair has grown, but also i can feel my hair getting fuller. I get alot of compliments on my hair line and how good my hair smells. I have not found another product like this one, so worth the price.

It’s a really good serum. It feels like water. It doesn’t make your hair go greasy. I used it right after I showered and I put it on. It helped with my shedding a lot. It is expensive but it’s worth the money. The main use of this was to help with shedding and it did its job.

I really like it. This product is incredible. It makes small hairs grow and has a great scent. It doesn't leave my hair heavy or greasy. This is the second time I've used it, and I love it. I would buy it again.