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Serum Jeunesse is a treatment for thinning and greying hair. It reprigments greying hair, lifts roots and magnifies volume while restoring youthful softness.
Read more: Turn back the time on aging hair

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  • Compensates loss of quality
  • Protects melanin of the hair
  • Hair fiber regain its initial youthfulness and glow
  • Supple softeness and dazzling volume
  • Density & Volume
  • Shine & Manageability
  • Restores youthful softness


Apply 2-3 doses directly on the scalp section by section.
Massage with fingers.
Spray 3 - 4 doses on the lengths and comb to distribute the product equally.
Do not rinse.
Use the hair drier to activate the treatment.
Dosage: 15 doses for short hair, and 20 doses for long hair.

Professional tips: Thanks to its precise noozle,  the densifique applicator allows a precise delivery on the roots & the fiber and enjoyable use on any kind of hair (short, medium,long).


Stemoxydine®: mimics stem cells optimal environment that allows their interaction and awakens dormant follicles

Anti-OX Cellular®: antioxidant complex to prevent the loss of melanin

Ceramides & Texturizing Polymer: compensate the loss of melanin of the hair

Your Review

THE COLLECTION - DENSIFIQUE Experience the new Densifique program for thick and full hair.

Hair loss and loss of density are different hair concerns that Kérastase treats with a dedicated ritual. To determine which ritual is ideal for you, follow this simple rule:

• If you have noticed visible hair loss but no receding hairline, the Densifique solution is ideal for you.
• If you observe a receding hairline as well as peaks of hair loss, the Aminexil solution is right for you.

In case of uncertainty, a Kérastase salon will help you identify the right ritual for your needs.

Discover the beauty routine

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