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Biologique Recherche


Biologique Recherche products are highly personalized and we want to ensure you get the appropriate products for your skin. Please request a personal consult and we'll get you started with this amazing skin care line.
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Biologique Recherche


Sérum Erythros is a cocktail of seven active ingredients that target the visible signs of rosacea. They combine to act synergistically on three complementary fronts to reduce visible areas of redness, make broken veins less apparent on the skin surface, and soothe any tingling sensations. Recommended for Skin Instants© prone to rosacea.

SIZE: 30ml (1.0 fl oz)


• Reduces visible redness

• Soothes and protects from inflammation

• Calms itchiness

• Decreases skin bloodstream

• Inhibits the formation of new blood vessels (in vitro tests)


After cleansing,apply 4 to 5 drops of serum to the areas that are afflicted by rosacea. Use as an intensive three-month curative treatment. We recommend using this with Eau Micellaire Biosensible and/or Masque Biosensible. Do not apply Lotions P50 to areas affected by rosacea.

▪ Avoid external factors that exacerbate redness (exposure to wind, sun, hot baths, strong exfoliants, etc. Avoid contact with eyes and the area around the eyes. Do not use on children under 3. For external use only.


Bloodflow reducing agents: Black Crowberries juice, Red Microalgae extract, Complex of Arnica flowers, Solomon's Seal and Cypress cones

Neovascularization inhibiting agents: Plants Acids extract (Rosemary, Coffee, Oak)

Soothing agents: White Tea leaf extract, Vitamin B3, Kudzu extract

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