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Kérastase Genesis Serum Anti-Chute Fortifiant Anti Hair-Loss Serum 30ml

A daily fortifying scalp serum that helps reduce hair fall, strengthen weakened roots and soothe the scalp for fuller, healthier-looking hair.
£18.80
RRP £23.50 (20% off)
  • Helps reduce hair fall caused by breakage and weakened roots
  • Strengthens and anchors the hair fibre with 1.5% Aminexil
  • Energises scalp micro-circulation with Caffeine
  • Soothes the scalp while helping to reduce itchiness and discomfort
Spend £25.00 more for FREE standard UK delivery.

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Before + Afters

Before After

Hair feels weakened, fragile and prone to shedding or breakage. With consistent daily use, hair feels stronger and more securely anchored, with reduced hair fall and a calmer, more comfortable scalp.

Hair Type Concern:

Hair Loss & Thinning

Scalp Care

Product Description

Kérastase Genesis Serum Anti-Chute Fortifiant Anti Hair-Loss Serum (30ml) is the best-selling Kérastase anti hair-fall serum, a daily fortifying scalp treatment for hair prone to hair loss and breakage. Loved as a hair growth routine hero, this leave-in serum strengthens from the root while soothing the scalp and discouraging itchiness.

Caffeine in the fresh, jelly-like formula stimulates scalp micro-circulation, antioxidant Ginger Root defends against environmental aggressors, and 1.5% Aminexil maintains Collagen quality to anchor the fibre, reducing hair-fall with consistent daily use. Ideal for thinning, weakened or shedding-prone hair.

Key Benefits

  • Reduces hair-fall from both breakage and weakened roots.
  • Stimulates scalp micro-circulation with Caffeine.
  • Soothes the scalp and discourages itchiness.
  • Fortifies hair daily as part of an anti hair-loss routine.

Key Ingredients

  • Aminexil (1.5%) - maintains Collagen quality to anchor the hair.
  • Caffeine - energises scalp micro-circulation.
  • Ginger Root - antioxidant defence against aggressors.

How To Use
  • Use once daily, either in the morning or before going to bed.
  • Apply 4 doses to dry or towel-dried scalp, section by section.
  • Massage gently and leave in.
  • Style hair as desired.

Ingredients & Product Highlights

The list of ingredients is subject to change, it is recommended to review the ingredient list printed on the packaging of the product prior to usage or consumption. If the ingredient list doesn't load below, please email our customer care team and we'll send an image of the packaging.

Delivery & Returns

Justmylook offers free delivery on all UK orders over £25 via Royal Mail 48 Tracked. We offer free next-day delivery on all orders over £80 via Royal Mail 24 Tracked.

Royal Mail 24 is the only service that will be dispatched for next day delivery on a Sunday.

To see our returns policy, please click here.

We have a variety of express services available.

Royal Mail 48 Tracked: Orders placed before 6:00 pm are dispatched the same day Mon-Fri, and 2:00 pm Sat. Orders after this threshold will be dispatched the next working day. Delivery takes 2 days, including Saturdays. This service is free for orders over £25, orders under £25 will be subject to a £2.99 delivery charge.

Royal Mail 24 Tracked: Orders placed before 10:00 pm Mon-Fri, before 2pm Saturday and before 12pm Sunday are dispatched the same day. Orders after this threshold will be dispatched the next working day. Delivery will take place the next day, including Saturdays & Sundays. This service is free for orders over £80. The charge for this service is £1.99 for orders between £25 - £79.99, and £3.99 for orders under £25.

Royal Mail Special Delivery: Orders placed before 10:00 pm are dispatched the same day Mon-Fri, and 2:00 pm Sat. Orders after this threshold will be dispatched the next working day. Delivery will take place the next day, including Saturdays & Sundays. The charge for this service is £5.99.

DPD: Orders placed before 2:00 pm are dispatched the same day Mon-Fri. Orders after this threshold will be dispatched the next working day. Delivery will take place the next working day. The fee for this service is £5.99.

Republic of Ireland: We're sorry to inform our customers in Ireland
that we have suspended shipping to the Republic of Ireland. Recent changes to
legislation have made it impractical for us to continue offering reliable,
cost-effective delivery to Irish addresses. We don't want our customers facing
unexpected charges or delays at the border, so we've taken the decision to
pause Irish deliveries until further notice.

Please note it is not currently possible to offer a next-day delivery service to the below postcodes for orders placed after 5:00 pm. AB, BT, DD, DG5-9 & 10-16, FK17-21, G58, G60, G62, G63, G65, G71-84, GY, HS, IM, IV, JE, KA, KW, KY10, KY14-16, ML10-12, PA20-38, PA41-49, PA60-78, PH, PO30-41, TD, TR21-25, ZE.

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Your questions answered

What does the Genesis Serum Anti-Chute Fortifiant do?

The Genesis Serum Anti-Chute Fortifiant is Kérastase's best-selling anti-hair-fall treatment, formulated for hair that's prone to thinning and breakage. The leave-in serum strengthens from the root while calming the scalp and discouraging itchiness, making it a good fit for anyone building an anti-hair-loss routine from scratch.

How long before I see results?

The Genesis Serum Anti-Chute Fortifiant is Kérastase's best-selling anti-hair-fall treatment, formulated for hair that's prone to thinning and breakage. The leave-in serum strengthens from the root while calming the scalp and discouraging itchiness, making it a good fit for anyone building an anti-hair-loss routine from scratch. Its jelly-like texture absorbs quickly, so it never gets in the way of your usual styling routine.

How do I apply the serum?

Fill the pipette to the mark and apply directly to a dry or towel-dried scalp, section by section, without rinsing. Daily use is recommended for best results. Working it in with your fingertips also gives the scalp a light massage as you go.

What are the key ingredients?

Caffeine stimulates scalp micro-circulation, Ginger Root defends against environmental aggressors, and 1.5% Aminexil helps maintain Collagen quality to anchor the hair fibre. Together, these work to reduce hair-fall with consistent daily use. This combination targets hair-fall at both the scalp and the fibre level rather than treating it as a single cause.