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

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. 💖 Read more

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. Read more

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 Read more

I’ve been using the Kérastase Genesis Hair Serum for a few weeks, and I can already see a difference! My hair feels stronger, softer, and less prone to breakage. It has a light, pleasant scent and doesn’t leave my hair greasy. I love how it absorbs quickly and adds a healthy shine. Perfect for anyone struggling with hair fall or weak strands definitely worth it! Read more

I bought this for my wife as a birthday present and she loves it. She's been using it for a little over 3 weeks now and has had no complaints. The texture is light, absorbs fast, and doesn't leave a mess on her scalp or her pillow. I think it smells great, but the scent fades fairly quickly (which she prefers). There are fewer hairs in the drain and in her brush, so I'd say it's working pretty well even if that assessment isn't very scientific. It's something that's quick to use but seems to be working as advertised. For the price, I'd definitely say this is a "premium" product that actually feels like it's worth the money. Read more

This product really helped with my hair loss. I followed the treatment for 6 weeks as recommended and started noticing a difference within the first week. By the end of the treatment, I only had a few strands of hair falling out, which is normal. I’m giving it 4 stars because after stopping for a month, my hair started falling out again. It seems you have to use it consistently to maintain results. Since the product is a bit pricey, that’s something to keep in mind. I was hoping for longer-lasting effects, but overall, it did work while I was using it. I’ll keep searching for something with more permanent results. Read more

Amazing product ! Took my dry, bleached, straw-like hair and made it soft and shiny again ! I haven’t seen it this healthy in years and I have only been using it for a few days . Expensive but worth it . Read more

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! Read more