About the product
Youth Serum is the serum from iS Clinical's Youth line, designed for skin that is starting to lose tone. It brings together hyaluronic acid, Extremozymes and botanical extracts in a formula working on two levels: a tightening effect you feel on application and background work on lines, firmness and elasticity.
The texture is fluid, almost watery, and absorbs in seconds. Skin is left smooth and gently lifted, with no stiffness or residue. It fits any routine: after cleansing and before your cream, and it pairs particularly well with Youth Complex.
It is the step we recommend when you want to feel something from day one and keep seeing changes a month later.
What it does
- Tightening effect you feel instantly
- Expression lines look softer with use
- Improved firmness and elasticity
- Fluid texture that absorbs in seconds












