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

Our hair care collection that treats hair fall due to hair breakage from brushing. The Genesis collection is a dual action fortifying system professionally formulated to strengthen hair and reduce hair breakage.
Instant Transformation, Infinite Possibilities.
Make an appointment in your KŽrastase salon for a personalized hair diagnosis.
What is the fragrance in Serum Fortifiant Hair Serum?
Inspired by the energy flowing from modern colognes, Genesis fragrance is a bright, invigorating scent of bergamot & a hint of aromatic green.
How often should I use Serum Fortifiant Hair Serum?
For best results to strengthen weakened hair, we recommend using Serum Fortifiant Hair Serum daily after using a shampoo and conditioner or hair mask.
Should I use Serum Fortifiant Hair Serum on wet or dry hair?
We recommend using Serum Fortifiant Hair Serum on damp, towel-dried scalp after cleansing with and treating with a conditioner or hair mask. After applying the hair serum, proceed to blow dry or let hair air dry. Do not rinse.
Should Serum Fortifiant Hair Serum be applied to the hair or scalp?
Serum Fortifiant Hair Serum should be applied to the scalp in order to strengthen hair and prevent hair fall due to breakage from brushing. Apply to parts of the scalp where your hair needs the most strength and in areas where you notice less density
What is the difference between hair-fall and hair-loss?
Hair-loss is defined by > 100 strands falling from the roots per day due to the hardening of collagen hair shaft. Hair-fall is defined by > 100 strands per day falling from the roots due to biological reasons (stress, hormones, diet) OR breakage.
Renforcateur Conditioner
Nutri-Fortifiant Shampoo
Hydra-Fortifiant Shampoo
Reconstituant Hair Mask
Defense Thermique Serum
Fortifiant Serum