Biologique Recherche


A protective bio-serum that preserves epidermal water content, Serum T.E.W.L cocoons the skin to seal in hydration and protect against extreme weather conditions, air conditioning and the assault of long haul travel. Cholesterol Sulphate and Mink Fat deliver potent lipids to regenerate dry, devitalised conditions while Sea Buckhorn Berry, Barbary Fig Extract and Jojoba boost skin immunity and assist in defence against environmental aggressors that can compromise barrier function and accelerate ageing. Raspberry Seed and Cranberry work to deeply repair and revitalise lacklustre skins, ensuring the complexion is immediately comforted, protected and moisture is locked in day and night.

Cholesterol Sulphate, Mink Fat, Sea Buckhorn Berry, Barbary Fig, Raspberry Seed, Cranberry


  • Morning and Evening after cleansing
  • Gently press into face, neck and décolletage

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