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[COSMETIC GLOSSARY : Isotonicity]
Guérande cosmetics’ have the particularity to be isotonic. In this word ISOTONIC, there is BALANCE. Indeed, Mother-Waters are incorporated into our products in ISOTONIC dosage, that means according to the skin’s natural balance in mineral salts and micronutrients. The biologist René Quinton has identified the parallel between these 2 supports, comparing marine and human plasma. […]