A definitive guide to hair thinning in men
In men, hair loss can be a real concern. 70% of men experience hair fall, here we reveal what causes hair thinning and a lack of hair volume in men.
More InformationOur new collection Genesis Homme is a dual action range that instantly volumizes the hair, whilst offering effective long-term results against thinning and hair fall. Discover the hardworking products and how to use them here.
Hair thinning and hair fall , we get it—it’s not exactly a subject you want to talk about but while it can feel quite isolating, 70% of men have to deal with hair fall at some point in their lives. And for the 16% of men that do treat hair thinning, many have found the products out there to be inconvenient and lacking instant results. Kérastase understood the brief, we needed to create a product line with great textures that offered both instant and long-term results. Enter: Genesis Homme , a collection that we believe is the best hair growth product line for men.


With Genesis Homme you get results fast - we’re talking after just one use. Hair is instantly 85% stronger and 5 times fuller.* But it’s with consistent use that you start to see the real long-term benefits. After 6 weeks of daily use*, hair fall is reduced and there is noticeably more hair fiber retention.
*Instrumental test using Bain de Masse épaississant + Cire d'épaisseur Texturisante + Sérum Anti-Chute Fortifiant
**Clinical study, 99 people, after 6 weeks of use of Sérum Anti-Chute Fortifiant
Genesis Homme is our collection of 5 anti-thinning hair products that are all powered by an effective cocktail of ingredients, expertly formulated to tackle hair thinning and hair fall.
For instantly more hair volume, there is the combination of ginger root, creatine and expanding that immediately strengthen the hair fibers and plump the existing hair for a fuller look, fast.

Day after day, 1.5% Aminexil, our alternative to Minoxidil, helps to stop hair fall by fortifying the root of the hair so it is more effectively anchored into the follicle, whilst also protecting against environmental aggressors like pollution and UV rays.
So, what is Aminexil? A L’Oréal research active it has the capability to inhibit the rigidity of the collagen network. In simple terms that means it works hard to keep the root of each strand supple and anchored to the scalp.
Kérastase knows men want simple, fuss-free products that drive results and, so, Genesis Homme (link to shopping page) is a concise collection of just 5 hair products for men that prevent hair fall and thinning.
At the core of our range are two shampoos that we believe are the best shampoos for hair thinning.
Serum Anti-Chute Fortifant our hero product is the only one to contain the 1.5% Aminexil, an alternative to Minoxidil, and is formulated to be used daily to fortify weakened strands prone to thinning and hair fall. The translucent serum-like gel is clinically proven to reduce the rate of hair fall after 6 weeks*. It works to slow down the shedding process and re-anchor the fiber to the root to minimize hair fall. It also works to effectively preserve the scalp’s natural protective barrier to keep roots shielded from environmental aggressors. As if that isn’t enough, the formula also has a significant soothing effect to reduce any unwanted itchiness and discomfort after just 3 weeks.
Expert tip: Make sure you use this serum every single day - you don’t have to use it at the same time or after you have washed your hair so put it by your bed where you are going to see it and use it every day for 6 weeks. Do this and you’re going to get the thicker, stronger, hair that you wanted.
How to use: Apply 4 doses (1 dose = 1 pipette until mark) to dry or towel-dried scalp, section by section.
*Clinical study, 99 people, after 3 weeks of use (soothing) and 6 weeks of use (hair-loss) of Sérum Anti-Chute Fortifiant