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Biologique Recherche's legendary exfoliating lotion — and the most polarising product in luxury skincare. First formulated in 1970 by Dr. Philippe Allouche, P50 is a multi-acid exfoliating toner that does what most products try to do separately: lactic acid (AHA, gentle resurfacing), salicylic acid (BHA, pore-penetrating), phytic acid (mineral chelator, brightening), niacinamide (sebum regulation, tone-evening), sulfur (antimicrobial), and the original 1970 formula's hallmark ingredient — phenol. The vinegar base creates the unmistakable scent that converts and repels in equal measure. The 1970 version is the original-recipe, sold via authorised estheticians outside the EU (the EU-sold formulation differs slightly to comply with cosmetic regulations on phenol concentration). Used 1-2x daily on a cotton pad after cleansing — never under SPF without practitioner guidance. At $80 for 150ml, premium pricing, but the per-use cost is reasonable given the multi-acid concentration and the genuine category-defining status.
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Lotion P50 1970 by Biologique Recherche is formulated for normal, oily, combination, mature skin. Biologique Recherche's legendary exfoliating lotion — and the most polarising product in luxury skincare. First formulated in 1970 by Dr. Philippe Allouche, P50 is a multi-acid exfoliating toner that does what most products try to do separately: lactic acid (AHA, gentle resurfacing), salicylic acid (BHA, pore-penetrating), phytic acid (mineral chelator, brightening), niacinamide (sebum regulation, tone-evening), sulfur (antimicrobial), and the original 1970 formula's hallmark ingredient — phenol. The vinegar base creates the unmistakable scent that converts and repels in equal measure. The 1970 version is the original-recipe, sold via authorised estheticians outside the EU (the EU-sold formulation differs slightly to comply with cosmetic regulations on phenol concentration). Used 1-2x daily on a cotton pad after cleansing — never under SPF without practitioner guidance. At $80 for 150ml, premium pricing, but the per-use cost is reasonable given the multi-acid concentration and the genuine category-defining status.
The key active ingredients in Lotion P50 1970 are Niacinamide, Salicylic Acid, Lactic Acid, Phytic Acid. It's known for: multi-acid: lactic + salicylic + phytic — single product replaces a layered routine and category-defining since 1970 — no other toner has this active depth.
Yes, Lotion P50 1970 targets pores, dullness, fine lines, hyperpigmentation. multi-acid: lactic + salicylic + phytic — single product replaces a layered routine
Lotion P50 1970 retails for around $80, which places it in the premium range for exfoliants. Check the "Where to Buy" section above for current retailer prices.
The main drawbacks to be aware of: the vinegar scent is genuinely strong — polarising on first encounter; phenol in the 1970 version requires practitioner guidance — sun-sensitisation risk; distribution is intentionally restricted to authorised institutes.
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