Struggling with hair loss or breakage? Kérastase's Genesis Serum has been labelled an 'all-time favourite' product by shoppers for promoting thicker-looking hair, and it's on sale
11:20, 23 Apr 2025
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If you've been struggling with thinning hair, fall out, or breakage, shoppers think they've found just the product to help and the best part is that it's currently 20% off in LookFantastic's spring sale.
The hair product in question is the Kérastase Genesis Serum Anti-Chute Fortifiant. Originally priced at £47, this serum is now £37.60, a saving of nearly £10.
Kérastase boasts major royal and celeb fans including Kate Middleton, Beyonce and Jennifer Aniston, so it's no surprise that the Genesis serum is now receiving some serious praise.
So, what exactly does the product do? It's a high-performance hair oil that specifically targets weak strands, helping to promote fuller, thicker-looking hair and minimise breakage. Packed full of potent and nourishing ingredients, the serum promises to not only boost hair thickness but hydrate the strands so you're left with silky smooth locks.
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Of course, this product is on the pricier side, which is why is well worth taking advantage of the sale. And shoppers glowing reviews suggest the price tag is definitely worth it. One happy shopper wrote: "This product is expensive. But I noticed less fall out in the shower and on my hairbrush. It smells incredible and doesn’t weigh down hair or make it greasy."
With a second stating that they are a repeat customer: "This is my third bottle, it really is worth the money. My hair stopped falling out so much and really grown". A third added: "Can really tell the difference in the thickness of my hair after using like for 8 weeks! Also smells amazing".
The main criticism from shoppers was due to the amount of product you receive and how quickly this can be used up if using the oil every single day. A customer wrote: "This is one of my all time favourites however, it runs out super quickly when using the suggested amount. Does make your hair feel thicker and definitely promotes hair growth!".
Alternatively, a couple other serums that have received lots of praise for promoting growth is the UKLash Hair Growth Serum, £40, and the Champo Pitta Growth Serum, £34.