Serum Erythros
Benefits
Biologique Recherche Serum Erythros eases the symptoms of redness-prone and rosacea-prone skin. This serum acts simultaneously on the causes of vascular dilation and the formation of new blood capillaries, calming inflammation and reducing visible redness.
White Tea Leaf Extract is rich in catechins and polyphenols that protect the skin from environmental damage, reduce inflammation and soothe irritation, while supporting the vascular network against the fragility that causes visible flushing.
Vitamin B3 (Niacinamide) acts on multiple fronts — reducing inflammation, improving the skin barrier and visibly diminishing redness and blotchiness over time. Kudzu Extract delivers targeted soothing and anti-inflammatory benefits by limiting the enzyme involved in inflammatory reactions, reducing capillary permeability and the appearance of diffuse redness at the skin's surface.
Red Microalgae Extract and the Complex of Arnica Flowers, Solomon's Seal & Cypress Cones further soothe, tone and reinforce the skin's resistance to reactivity, resulting in a progressively calmer, clearer and more even complexion.
Biologique Recherche Serum Erythros eases the symptoms of redness-prone and rosacea-prone skin. This serum acts simultaneously on the causes of vascular dilation and the formation of new blood capillaries, calming inflammation and reducing visible redness.
White Tea Leaf Extract is rich in catechins and polyphenols that protect the skin from environmental damage, reduce inflammation and soothe irritation, while supporting the vascular network against the fragility that causes visible flushing.
Vitamin B3 (Niacinamide) acts on multiple fronts — reducing inflammation, improving the skin barrier and visibly diminishing redness and blotchiness over time. Kudzu Extract delivers targeted soothing and anti-inflammatory benefits by limiting the enzyme involved in inflammatory reactions, reducing capillary permeability and the appearance of diffuse redness at the skin's surface.
Red Microalgae Extract and the Complex of Arnica Flowers, Solomon's Seal & Cypress Cones further soothe, tone and reinforce the skin's resistance to reactivity, resulting in a progressively calmer, clearer and more even complexion.
Read less30 ml
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More Info
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Who it is for
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How to Apply
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Ingredients
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Smell & Texture
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About the Brand
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Who it is for
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How to Apply
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Ingredients
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Smell & Texture
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About the Brand
For you if
Not For you if
Biologique Recherche treats skin according to its Skin Instant©, the skin’s precise, evolving state. Each formula is loaded with active ingredients in exceptional concentrations, then prescribed to address those real-time needs. This precision approach corrects imbalances, restores function, and delivers visible, lasting transformation.
Cold-processed actives are the core of Biologique Recherche. Formulated at 18–25°C, this method avoids the 70°C heat of standard processing that breaks down actives. Botanical, marine, and biotechnological extracts stay intact for higher absorption, stronger repair, and better tolerance. Antioxidants, peptides, and enzymes remain stable, ensuring consistent, visible results.
The Benefits
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Anti-Inflammatory
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Anti-Redness
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Plumping
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Antioxidant
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Skin Barrier Strengthening
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Vaso-Constricting
Anti-Inflammatory
Anti-Redness
Plumping
Antioxidant
Skin Barrier Strengthening
Vaso-Constricting
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Anti-Inflammatory
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Anti-Redness
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Plumping
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Antioxidant
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Skin Barrier Strengthening
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Vaso-Constricting
Active Ingredients
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White Tea Leaf Extract
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Vitamin B3 (Niacinamide)
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Kudzu Extract
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Red Microalgae Extract
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Green Microalgae
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Complex of Arnica Flowers, Solomon's Seal & Cypress Cones
White Tea Leaf Extract
Vitamin B3 (Niacinamide)
Kudzu Extract
Red Microalgae Extract
Green Microalgae
Complex of Arnica Flowers, Solomon's Seal & Cypress Cones
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White Tea Leaf Extract
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Vitamin B3 (Niacinamide)
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Kudzu Extract
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Red Microalgae Extract
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Green Microalgae
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Complex of Arnica Flowers, Solomon's Seal & Cypress Cones
Understanding Rosacea
Clinical Proofs
Spotlight
Understanding Rosacea
Clinical Proofs
Clinical Proofs
Frequently Asked Questions
When should I apply this serum in my routine?
Can I layer this serum?
Can I use this serum day and night?
Can I use this product if I have oily skin?
Can I use this product if I have dry skin?
Can I use this product if I have combination skin?
Can I use this product if I have sensitive skin?
Can I use this product if I have eczema/Psoriasis?
Can I use this product if I have rosacea?
Can this product be used during pregnancy and whilst breast feeding?
Why I love it
X Natalie K-F
Founder, Embassy of Beauty










