Yon-Ka Paris offers French-made, luxurious, plant cell active-based skincare regimens. Quintessence, Yon-Ka’s unique essential oil Complex, delivers the unique olfactive and therapeutic experience that discerning consumers and passionate professionals have been raving about since 1954. Thanks to its research and expertise in phyto-aromatic therapy, Yon-Ka Paris develops sensorial skincare products and protocols with scientifically proven efficacy.