Serum Yall~O2
Serum Yall~O2


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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.

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

How to use:
  • 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

Do not apply to children’s skin. For external use only.

Main ingredients:
  • Antioxidiant and protective agent: Pomegranate Extract.
  • Regenerating and healing agents: Hibiscus and Lily Extracts.
  • Hydrating agents: Hyaluronic Acid, 10% Marine Collagen, Natural Moisturizing Factors (NMF).
  • Oxygenating agent: Specific BR Oxygenating Complex, Nanotechnology formulation.


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