Biologique Recherche



A real shock treatment to boost hydration, Sérum Yall 02 contains ultra-high doses of hyaluronic acid and antioxidant plant extracts. This intense hydrating treatment provides the amount of moisture skin needs to function properly and feel comfortable. The effect is instant, as the fine lines caused by dehydration are plumped up. It reinforces skin’s elasticity and forms a protect layer over the skin.

Recommended for Skin Instants© that are dehydrated and lacking in lipids.


1. Apply 4 to 5 drops of finishing serum to the entire face, neck and décolleté, in the morning and/or at night

2. This product is applied as the final touch of the Biologique Recherche skincare program

  • Plumping effect on the fullness of the face and lips.

  • Revitalizes and reinforces the skin’s elasticity.

  • Forms a protective film over the skin.

  • Promotes optimal skin hydration levels.

  • Increases and restructures the fullness of the skin and lips.

  • Major weapon against dehydration and aging, highly targeted action.

  • Reduces the size and depth of lines and wrinkles and restores the skin’s smooth appearance.

  • Leaves the skin visibly refreshed and regenerated.

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