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(39)
CULT CLASSIC
(39)
Benefits
  • Exfoliating
  • Brightening
  • Anti-Bacterial
  • Anti-Acne
  • Anti-Inflammatory
  • Mattifying
  • Clears Pores
  • Purifying
  • Barrier-Strengthening
  • Active Delivery
  • Antioxidant

Biologique Recherche Lotion P50 is a rebalancing, exfoliating toner that renews the skin’s surface to refine texture, clarify the complexion, and strengthen the skin barrier.

A synergistic blend of AHA, BHA, and PHA acids supports controlled cellular turnover to smooth roughness and minimise pores, while Niacinamide regulates sebum production and calms inflammation for a clearer, more even appearance.

Sulphur purifies and rebalances the skin’s microbiome, helping to prevent congestion, while Onion, Myrrh & Myrtle Extract kill acne forming bacteria.

Read more

Biologique Recherche Lotion P50 is a rebalancing, exfoliating toner that renews the skin’s surface to refine texture, clarify the complexion, and strengthen the skin barrier.

A synergistic blend of AHA, BHA, and PHA acids supports controlled cellular turnover to smooth roughness and minimise pores, while Niacinamide regulates sebum production and calms inflammation for a clearer, more even appearance.

Sulphur purifies and rebalances the skin’s microbiome, helping to prevent congestion, while Onion, Myrrh & Myrtle Extract kill acne forming bacteria.

Read less
Size
£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

Oily Skin

Enlarged Pores

Thick Skin

Dull Skin

Textured Skin

Active Acne

Cystic Acne

Acne-Prone

Red Cross
Not For you if
How to Apply
For the first two weeks of use, apply a few drops to dampened cotton pads with cold water, and press and release, patting the product all over face, neck and décolleté, once in the evening. Please do not rub and only pass over each area once. After two weeks of use, if the skin is not sensitive to the product, switch to dry cotton pads.
Ingredients

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

Water (Aqua), Gluconolactone, Lactic Acid, Glycerin, Propylene Glycol, Niacinamide, Citric Acid, Ethoxydiglycol, Magnesium Chloride, Malic Acid, Cochlearia Armoracia (Horseradish) Root Extract, Arctium Lappa Root Extract, Rumex Acetosa Leaf Extract, Myrtus Communis Extract, Allium Cepa (Onion) Bulb Extract, Commiphora Myrrha Resin Extract, Phytic Acid, Salicylic Acid, Sulfur, Thymus Vulgaris (Thyme) Flower/Leaf Oil, Vinegar (Acetum), Sorbitol, Sodium Benzoate, Phenoxyethanol, Potassium Sorbate, Sodium Bisulfite.

Contraindications: Not to be used on the eye contour area. SPF must be used when using this product; do not use if you are going to be exposed to direct sunlight. We do not recommend you use this product alongside any other AHA’s or vitamin A products (such as retinol or retinoids). Do not use after invasive medical/aesthetic treatment for at least one month. Do not use immediately after a facial peel, or a medical laser treatment. Do not use on damaged or irritated skin or on open wounds or burns. Do not use on sensitive/sensitised areas, unless directed otherwise by a professional.


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: It has a strong, medicinal scent with hints of vinegar and yeast.

Texture: It has a watery, liquid texture.

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

  • - + Chemical Exfoliation
  • - + Brightening (Energising)
  • - + Anti-Bacterial
  • - + Anti-Inflammatory
  • - + Sebum Regulating (Mattifying)
  • - + Pore Decongesting
  • - + Purifying
  • - + Skin Barrier Strengthening
  • - + Active Delivery
  • - + Antioxidant
  • - + Photo-Protecting
Chemical Exfoliation

Chemical exfoliation uses acids to dissolve the "glue" holding dead skin cells together, promoting skin cell turnover and replacing old cells with new, healthy ones. Acids like AHAs, BHAs, and PHAs not only help shed skin but also offer benefits like brightening, clarifying, and anti-ageing, depending on the type used.

Brightening (Energising)

Brightening skincare involves using active ingredients to boost your blood circulation, detoxification and cellular energy. Improved blood circulation brings more essential nutrients and oxygen to your skin, while detoxification helps eliminate cell waste and impurities that can make your skin look dull. Certain active ingredients also enhance your skin's metabolism and regeneration. These combined actions restore your skin's vitality and radiant appearance, giving you a fresh, energised complexion.

Anti-Bacterial

Anti-bacterial action targets and inhibits the growth of bacteria on your skin's surface. Anti-bacterial ingredients work by disrupting essential bacterial processes like cell wall synthesis or protein production, reducing the risk of skin infections and inflammation. They are especially effective for treating acne by controlling the acne-causing bacteria known as Cutibacterium acnes (C. acnes). This anti-bacterial action helps diminish imperfections, prevent new breakouts, and reduce irritation, giving you clearer, healthier skin.

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.

Sebum Regulating (Mattifying)

Sebum regulation involves normalising oil production in your sebaceous glands to reduce shine, oiliness and breakouts, restoring your skin's natural balance. Overactive sebaceous glands can be triggered by internal factors like genetics, hormonal changes and stress, as well as external factors such as using stripping or overly active skincare, climate, pollution and diet. Excessive sebum production can lead to enlarged pores, acne and an oily, shiny appearance. Effective sebum regulation means using skincare products that balance oil levels without over-drying your skin, helping you achieve a clearer, more matte complexion.

Pore Decongesting

Pore decongesting focuses on both clearing and minimising the appearance of enlarged pores. Enlarged pores often result from excess oil production and the build-up of impurities within the pore, which can stretch them over time, while ageing further contributes as reduced elasticity makes them more visible. Effective formulations work first to clear the pores—dissolving and removing trapped sebum, debris, and congestion—before regulating oil production and supporting collagen and elastin to improve skin firmness. By addressing both internal build-up and structural integrity, pores can return to a clearer, more refined, and less noticeable state.

Purifying

Purifying skincare is designed to deeply cleanse and decongest the skin by targeting excess oil at its source—within the pores. Rather than simply removing surface shine, these formulations work to dissolve and dislodge sebum, debris, and impurities trapped inside the pore lining, helping to prevent congestion, blackheads, and breakouts. Actives such as exfoliating acids and oil-regulating ingredients penetrate into the pore to effectively “strip out” excess oil, restoring clarity and refining skin texture. By clearing buildup from within, purifying treatments leave the skin feeling exceptionally clean, balanced and visibly smoother.

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.

Active Delivery

Active Delivery skincare involves advanced technologies designed to boost the absorption and effectiveness of active ingredients deep within your skin's layers. These enhancements ensure that other ingredients deliver their powerful benefits precisely where they're needed most. By overcoming the common issue of low permeability in many effective ingredients, active delivery ingredients maximise the unique benefits and visible results of your skincare routine.

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.

Photo-Protecting

Photo-protecting skincare at a cellular level focuses on defending the skin against the internal damage triggered by UV exposure, rather than simply blocking rays at the surface. Ultraviolet radiation generates free radicals and disrupts cellular DNA, accelerating collagen breakdown, inflammation, and premature ageing. Advanced formulations work by neutralising oxidative stress, supporting DNA repair mechanisms, and strengthening the skin’s natural defence systems to limit long-term damage. By preserving cellular integrity and maintaining healthy skin function, this approach helps prevent visible signs of photo-ageing—such as wrinkles, loss of firmness, and uneven tone.

  • - + Chemical Exfoliation
  • - + Brightening (Energising)
  • - + Anti-Bacterial
  • - + Anti-Inflammatory
  • - + Sebum Regulating (Mattifying)
  • - + Pore Decongesting
  • - + Purifying
  • - + Skin Barrier Strengthening
  • - + Active Delivery
  • - + Antioxidant
  • - + Photo-Protecting

Active Ingredients

  • - + Alpha-Hydroxy Acids
  • - + Poly-Hydroxy Acids
  • - + Beta Hydroxy Acid
  • - + Vitamin B3 (Niacinamide)
  • - + Sulphur
  • - + Onion, Myrrh & Myrtle Extract
  • - + Magnesium Chloride
  • - + Cider Vinegar
Alpha-Hydroxy Acids

Alpha-Hydroxy Acids are a chemical exfoliant which exfoliate the top layers of the skin, offering a variety of benefits. They are mostly derived from plant-based sources. Some of the most common AHAs are Glycolic Acid, Lactic Acid, Citric Acid, Mandelic Acid and Malic Acid. Depending on the type of AHA, they can reduce dullness, even skin tone, reduce pigmentation, tighten pores, stimulate collagen production, hydrate the skin and offer antioxidant protection. AHAs are generally less irritating and drying to the skin as they are water-soluble.

Poly-Hydroxy Acids

Poly-Hydroxy Acids are a chemical exfoliant which exfoliate the top layers of the skin. However unlike AHAs & BHAs, they consist of larger molecules so they tend to sit on the surface of the skin for longer and penetrate slowly. Therefore, they are particularly good for more sensitive skins. As well as sloughing off dead skin cells, revealing a smoother, clearer and brighter complexion; this acid is also a fantastic hydrator.

Beta Hydroxy Acid

Beta Hydroxy Acid is a chemical exfoliant which penetrates deeply into pores to dissolve debris and dead skin cells. Because BHAs are oil-soluble, anti-bacterial & anti-inflammatory, they are particularly adept at treating active, inflamed and infected acne; even cystic acne. Also known as Salicylic Acid, this powerful ingredient is great at sebum-regulating the skin, reducing pores, lightening hyperpigmentation, fighting bacteria and easing inflammation.

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.

Sulphur

Sulphur is a chemical element found in various minerals, typically in the form of sulphide and sulphate compounds. It is valued for its keratolytic properties, which means it can soften keratinóthe protein that makes up the skin, hair, and nails. This softening action helps to smooth rough or hardened skin and facilitates the removal of superficial layers of the epidermis. By doing so, sulphur prepares the skin to better absorb and benefit from other skincare ingredients applied afterward. This makes it a useful component in skincare formulations aimed at promoting smoother, clearer, and more radiant skin.

Onion, Myrrh & Myrtle Extract

Unique to Biologique Recherche, the "Complex of Onion, Myrrh & Myrtle" has incredible astringent (tightening), purifying, antioxidant and soothing properties; which is very effective for an oilier complexion combatting sebum-regulation, acne or congestion.

Magnesium Chloride

Magnesium Chloride contains astringent properties, but also promotes skin regeneration by increasing the amount of collagen and elastin fibres in the dermis.

Cider Vinegar

Cider Vinegar is extracted from fermented apples and contains high concentrations of fruits acids. Particularly potent in Acetic Acid, Citric Acid and Malic Acid; Cider Vinegar contains powerful exfoliating, purifying and renewing properties. High in Polyphenols, this ingredient also has significant antioxidant effects, combatting damageing photo-induced free-radicals.

  • - + Alpha-Hydroxy Acids
  • - + Poly-Hydroxy Acids
  • - + Beta Hydroxy Acid
  • - + Vitamin B3 (Niacinamide)
  • - + Sulphur
  • - + Onion, Myrrh & Myrtle Extract
  • - + Magnesium Chloride
  • - + Cider Vinegar
Physical & Chemical Exfoliation

Physical and chemical exfoliation are two popular techniques for removing dead skin cells and promoting a healthier, more radiant complexion. Each method offers unique benefits and targets skin concerns differently, making them key components in any effective skincare routine. Exfoliation helps to improve skin texture, unclog pores, and enhance the absorption of skincare products, leading to smoother, brighter skin.

Physical exfoliation offers immediate results, while chemical exfoliation promotes deeper, longer-lasting effects without the risk of physical irritation. Physical exfoliation involves the use of scrubs, brushes, or cloths with granules that manually slough off dead skin cells from the surface. This method provides instant smoothness but can sometimes cause micro-tears, making it less suitable for sensitive skin types.

Chemical exfoliation, on the other hand, employs acids (like AHAs, BHAs) or enzymes to dissolve dead skin cells at a deeper level. This process promotes cell turnover, enhances the skin’s natural renewal process, and helps to reduce the appearance of fine lines, pigmentation, and dullness without abrasive action, making it gentler for sensitive skin.

Physical exfoliation delivers a quick, refreshed feel, but those with sensitive skin might find it too abrasive. Chemical exfoliation gradually reveals smoother, brighter skin with regular use, and is generally better suited for those seeking a gentler approach with deeper results. Users often notice improved skin clarity, reduced congestion, and an overall glow.

Both exfoliation methods have their place in a skincare routine, offering tailored solutions depending on skin type and needs. By choosing the right type of exfoliation, you can achieve a smoother, more radiant complexion that feels fresh, revitalised, and renewed, enhancing your overall skin health and appearance.

Clinical Proofs

EFFICACY TEST:
Test conducted on 19 women aged 22 to 68 with dull complexion and blemishes. Clinical scoring after applying the product twice a day for 28 days.

Changes on the 28th day (%)
Skin softness +45%
Luminosity of the complexion +34%
Smooth appearance of the skin+39%
Oily appearance of the skin-9

USAGE TEST:
Test conducted on 19 women aged 22 to 68 with dull complexion and blemishes. The product was applied
twice a day for 28 days.

- 100% of women said their skin was purified
- 89% of women said impurities were removed from their skin (spots, blackheads)
- 79% of women said the product removed dead cells
- 84% of women said sebaceous secretions were reduced
- 95% of women said their T-zone was less shiny
- 84% of women said their pores were tightened
- 89% of women said their skin texture was refined
- 95% of women said their skin was moisturised
- 95% of women said their skin was soft
- 79% of women said their complexion was evened out

* 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

Physical & Chemical Exfoliation

Physical and chemical exfoliation are two popular techniques for removing dead skin cells and promoting a healthier, more radiant complexion. Each method offers unique benefits and targets skin concerns differently, making them key components in any effective skincare routine. Exfoliation helps to improve skin texture, unclog pores, and enhance the absorption of skincare products, leading to smoother, brighter skin.

Physical exfoliation offers immediate results, while chemical exfoliation promotes deeper, longer-lasting effects without the risk of physical irritation. Physical exfoliation involves the use of scrubs, brushes, or cloths with granules that manually slough off dead skin cells from the surface. This method provides instant smoothness but can sometimes cause micro-tears, making it less suitable for sensitive skin types.

Chemical exfoliation, on the other hand, employs acids (like AHAs, BHAs) or enzymes to dissolve dead skin cells at a deeper level. This process promotes cell turnover, enhances the skin’s natural renewal process, and helps to reduce the appearance of fine lines, pigmentation, and dullness without abrasive action, making it gentler for sensitive skin.

Physical exfoliation delivers a quick, refreshed feel, but those with sensitive skin might find it too abrasive. Chemical exfoliation gradually reveals smoother, brighter skin with regular use, and is generally better suited for those seeking a gentler approach with deeper results. Users often notice improved skin clarity, reduced congestion, and an overall glow.

Both exfoliation methods have their place in a skincare routine, offering tailored solutions depending on skin type and needs. By choosing the right type of exfoliation, you can achieve a smoother, more radiant complexion that feels fresh, revitalised, and renewed, enhancing your overall skin health and appearance.

Clinical Proofs

Clinical Proofs

EFFICACY TEST:
Test conducted on 19 women aged 22 to 68 with dull complexion and blemishes. Clinical scoring after applying the product twice a day for 28 days.

Changes on the 28th day (%)
Skin softness +45%
Luminosity of the complexion +34%
Smooth appearance of the skin+39%
Oily appearance of the skin-9

USAGE TEST:
Test conducted on 19 women aged 22 to 68 with dull complexion and blemishes. The product was applied
twice a day for 28 days.

- 100% of women said their skin was purified
- 89% of women said impurities were removed from their skin (spots, blackheads)
- 79% of women said the product removed dead cells
- 84% of women said sebaceous secretions were reduced
- 95% of women said their T-zone was less shiny
- 84% of women said their pores were tightened
- 89% of women said their skin texture was refined
- 95% of women said their skin was moisturised
- 95% of women said their skin was soft
- 79% of women said their complexion was evened out

* 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 Lotion P50 250ml
    Biologique Recherche

    Lotion P50

    From £100

    Biologique Recherche Lotion P50 is a rebalancing, exfoliating toner that renews the skin’s surface to refine texture, clarify the complexion, and strengthen the skin barrier.

    A synergistic blend of AHA, BHA, and PHA acids supports controlled cellular turnover to smooth roughness and minimise pores, while Niacinamide regulates sebum production and calms inflammation for a clearer, more even appearance.

    Sulphur purifies and rebalances the skin’s microbiome, helping to prevent congestion, while Onion, Myrrh & Myrtle Extract kill acne forming bacteria.

    Size

    • 250ml
    • 150ml
    View product