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Serum Erythros

(3)
REDNESS DEFENCE
Serum Erythros
Biologique Recherche
(3)
Benefits
  • Anti-Inflammatory
  • Anti-Redness
  • Plumping
  • Antioxidant
  • Barrier-Strengthening

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 more

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 less

30 ml

£130
MyEB
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(£75)
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(£150)
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More Info

  • - + Who it is for
  • - + How to Apply
  • - + Ingredients
  • - + Smell & Texture
  • - + About the Brand
  • - + Who it is for
  • - + How to Apply
  • - + Ingredients
  • - + Smell & Texture
  • - + About the Brand
Who it is for
Green tick
For you if

Rosacea Flare-Ups

Rosacea

Red Cross
Not For you if

No contraindications


Not sure? Consult an expert.

How to Apply
On areas affected by rosacea. Avoid contact with eyes and the eye area. After cleansing the skin with Eau Micellaire Biosensible, and potentially after using Masque Biosensible, apply a few drops of the Serum Erythros to the areas affected by rosacea. Gently apply with the fingertips until complete absorption. Use Sérum Erythros during a course lasting at least 3 months.
Ingredients

Scroll down the page for a full breakdown of the active ingredients.

Water (Aqua), Niacinamide, Propanediol, Propylene Glycol, Glycerin, Empetrum Nigrum Fruit Juice, Pentylene Glycol, Butylene Glycol, Arnica Montana Flower Extract, Cupressus Sempervirens Seed Extract, Polygonatum Multiflorum Rhizome/Root Extract, Pueraria Lobata Root Extract, Camellia Sinensis Leaf Extract, Chlorella Vulgaris Extract, Plankton Extract, Sodium Gluconate, Citric Acid, Sodium Benzoate, Potassium Sorbate


Please note: The ingredients listed in this product are subject to change as the formulation is updated. We aim to update the INCI list as soon as possible, but we encourage you to read the ingredient list on the product itself to ensure it's suitable for your personal use.

Smell & Texture

Smells Like: A neutral scent with hints of botanical notes.

Texture: Lightweight and watery consistency.

About the Brand
Brand logo
Founded in Paris in the late 1970s by biologist Yvan Allouche and physiotherapist Josette Allouche, Biologique Recherche began as a laboratory for bespoke, high-performance formulas for elite skin professionals. Their medical-grade precision and artisanal formulation, paired with consummate savoir-faire, underpin their reputation for outstanding, clinically proven results.

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

  • - + Anti-Inflammatory
  • - + Anti-Redness
  • - + Plumping
  • - + Antioxidant
  • - + Skin Barrier Strengthening
  • - + Vaso-Constricting
Anti-Inflammatory

Anti-Inflammatory skincare soothes, heal, and balance your skin, the targeted actives are designed to reduce inflammation. Inflammation is your body's natural response to injury or irritation, but continuous inflammation can lead to troublesome skin conditions like acne, rosacea, or eczema. Our anti-inflammatory skincare solutions work to soothe and calm your skin, reducing redness, swelling, and discomfort to provide much-needed relief. By strengthening your skin's barrier, these products help protect against further irritation and damage. Additionally, the anti-inflammatory actives support your skin's natural healing processes, leading to a more balanced and resilient complexion.

Anti-Redness

Anti-Redness skincare is all about reducing and preventing facial or body redness, which can result from irritation, skin conditions, compromised barriers, and hormonal changes. A targeted approach with multiple strategies works best for tackling redness. Anti-Redness formulations include active ingredients that soothe and strengthen your skin barrier. Their anti-inflammatory and antioxidant properties calm inflammation and protect against environmental irritants. Additionally, these ingredients have vasoconstrictive properties, meaning they reduce blood vessel dilation to lessen redness. Together, these actions help achieve a more even-toned, balanced complexion that's less prone to redness flare-ups.

Plumping

Plumping involves using active ingredients to boost the production of key structural components like collagen, the dermal-epidermal junction and glycosaminoglycans (GAGs), giving your skin more volume and density. Collagen provides structural support and firmness, while the dermal-epidermal junction, a thin connective layer, ensures smooth, wrinkle-free skin by facilitating cell communication. GAGs, like hyaluronic acid, keep your skin hydrated and plump from within. By stimulating these components, active ingredients help restore your skin's plumpness and radiance.

Antioxidant

Antioxidant skincare is dedicated to protecting the skin against oxidative stress—one of the primary drivers of premature ageing and cellular damage—while preserving overall skin integrity and vitality. These formulations rely on potent molecules such as vitamin C, vitamin E, and polyphenols, which neutralize free radicals generated by UV exposure and environmental aggressors before they can compromise cellular structures like lipids, proteins, and DNA. Beyond defence, many antioxidants also support repair processes and enhance collagen stability, contributing to improved firmness, brightness and resilience. The result is skin that is not only shielded from ongoing damage but maintained in a healthier, more luminous state over time.

Skin Barrier Strengthening

Strengthening your skin barrier involves replenishing the key elements in the top layer of your skin (stratum corneum), leading to a stronger and healthier barrier. These essential elements include lipids (ceramides, fatty acids, and cholesterol) and Natural Moisturizing Factors (amino acids, hyaluronic acid, etc.). Various factors, such as incorrect skincare use, seasonal changes, and aesthetic treatments, can damage your skin barrier. When this happens, your skin loses excess water through Trans Epidermal Water Loss (T.E.W.L) and becomes less capable of defending against environmental stressors, resulting in dryness, sensitivity, and irritation.

A healthy skin barrier is crucial for overall skin health as it helps prevent hydration loss, protects against environmental damage, and reduces the risk of skin conditions like eczema and acne. By strengthening your skin barrier, you ensure your skin remains well-hydrated, resilient, and protected.

Vaso-Constricting

Skincare with Vaso-Constricting ingredients are specifically formulated for Rosacea affected skins. They target veins by strengthening capillary walls, reducing their visibility and preventing new vessels from forming. This helps diminish visible redness and flushing while fortifying your skin, giving you a clearer and more resilient complexion. Vascularization is the process of forming new blood vessels on the skin's surface, often resulting in redness, flushing, or broken capillaries, especially in conditions like rosacea.

  • - + Anti-Inflammatory
  • - + Anti-Redness
  • - + Plumping
  • - + Antioxidant
  • - + Skin Barrier Strengthening
  • - + Vaso-Constricting

Active Ingredients

  • - + White Tea Leaf Extract
  • - + Vitamin B3 (Niacinamide)
  • - + Kudzu Extract
  • - + Red Microalgae Extract
  • - + Green Microalgae
  • - + Complex of Arnica Flowers, Solomon's Seal & Cypress Cones
White Tea Leaf Extract

Extracted from Camelia Sinensis buds, White Tea Leaf Extract is rich in antioxidants like catechins and polyphenols, protecting the skin from environmental damage and premature cellular ageing. Its anti-inflammatory properties soothe irritation and reduce redness, whilst promoting collagen production for enhanced firmness and elasticity.

Vitamin B3 (Niacinamide)

Vitamin B3 also known as Niacinamide, is versatile and highly effective ingredient with many benefits. It helps to strengthen skin barrier function and increase water retention by increasing natural ceramide production. It's anti-inflammatory and sebum regulating properties soothe, repair and balance irritated, weakened and acne prone skins. Niacinamide is also a potent antioxidant with protective and brightening properties helping to restore skin's natural glow.

Kudzu Extract

Kudzu Extract is a soothing active that quickly reduces inflammation and is particularly efficient at soothing skin conditions like rosacea. It works by limiting the action of phospholipase 2, an enzyme involved in inflammatory reactions. Kudzu extract also helps to improve the skin's resilience to irritation.

Red Microalgae Extract

Red Microalgae Extract is powerful ingredient fighting signs of rosacea and sensitivity. Its potent antioxidant and anti-inflammatory properties effectively reduce redness and sensitivity, while enhancing protection against environmental irritants and hydration.

Green Microalgae

Green Microalgae is a targeted active that reduces vascular imperfections by limiting the formation of new vessels and diminishing the appearance of existing ones. Its amino acid composition also stimulates collagen types I, III, IV, and VII, increasing density around blood vessels and reducing their visibility.

Complex of Arnica Flowers, Solomon's Seal & Cypress Cones

The Complex of Arnica Flowers, Solomon's Seal & Cypress Cones has vasoconstrictive properties, meaning that it can reduce dilated vessels, and thus improve surface redness. They work in synergy to activate microcirculation which promotes better blood flow. This action reduces inflammation, strengthens capillaries, and aids skin healing.

  • - + White Tea Leaf Extract
  • - + Vitamin B3 (Niacinamide)
  • - + Kudzu Extract
  • - + Red Microalgae Extract
  • - + Green Microalgae
  • - + Complex of Arnica Flowers, Solomon's Seal & Cypress Cones
Understanding Rosacea

Rosacea is a chronic skin condition characterised by redness, visible blood vessels, and, in some cases, small, red bumps that can be mistaken for acne. Most commonly affecting the face, rosacea can be triggered by factors such as sun exposure, stress, spicy foods and alcohol. Managing rosacea involves gentle skincare products that calm inflammation and soothe irritation. Ingredients like niacinamide, azelaic acid and aloe vera can be effective, while harsh exfoliants and alcohol-based products should be avoided. Consistent sun protection is crucial to prevent flare-ups and further skin damage.

Clinical Proofs

EFFICACITY TEST:
Study of the angiogenic activity on endothelial cells:
The proliferation and migration of endothelial cells are mechanisms responsible for the formation of
vessels. Their inhibition contributes to the reduction of the formation of vessels.
- Significant inhibition of -35.77% of endothelial cell proliferation after 24h of analysis

* The above information has been supplied to the Embassy of Beauty by the brand manufacturer. Embassy of Beauty takes no responsibility for these claimed studies and or results.

Spotlight

Understanding Rosacea

Rosacea is a chronic skin condition characterised by redness, visible blood vessels, and, in some cases, small, red bumps that can be mistaken for acne. Most commonly affecting the face, rosacea can be triggered by factors such as sun exposure, stress, spicy foods and alcohol. Managing rosacea involves gentle skincare products that calm inflammation and soothe irritation. Ingredients like niacinamide, azelaic acid and aloe vera can be effective, while harsh exfoliants and alcohol-based products should be avoided. Consistent sun protection is crucial to prevent flare-ups and further skin damage.

Clinical Proofs

Clinical Proofs

EFFICACITY TEST:
Study of the angiogenic activity on endothelial cells:
The proliferation and migration of endothelial cells are mechanisms responsible for the formation of
vessels. Their inhibition contributes to the reduction of the formation of vessels.
- Significant inhibition of -35.77% of endothelial cell proliferation after 24h of analysis

* The above information has been supplied to the Embassy of Beauty by the brand manufacturer. Embassy of Beauty takes no responsibility for these claimed studies and or results.

Why I love it

  • "The efficacy of Biologique Recherche relies not only on its science-driven approach to balancing and curing the skin, but on its prescriptive and tailored nature."

    X Natalie K-F

    Founder, Embassy of Beauty

  • Biologique Recherche Sérum Erythros: Targeted Serum to Diminish Red Veins and Soothe Rosacea-Affected Skin
    Biologique Recherche

    Serum Erythros

    £130

    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.

    View product