Yon-Ka is a 100% French: it was created in 1954 by the Mühlethaler family who had a passion for botany. Pioneers in aromatherapy and phytotherapy, Cécile, Ernest and Charles Mühlethaler establish the Multaler laboratories in 1954, with a rich body of ancestral and empiric knowledge  which they share at the time only with a very few scientists, chemists and physicians.

At first, they focus on the subtle aromas of the plants and their essential oils charged with solar energy. They experiment on themselves and their relatives the many therapeutic benefits essential oils offer: purifying, healing, psychotropic…

Their researches lead them to a major breakthrough: the « Quintessence », a unique blend of 5 essential oils, all issued from the Mediterranean, and which becomes the cornerstone of their future skin care range.

As of 1968, the Mühlethaler sisters, Catherine (an aesthetician) and Françoise (a biochemist) lead the company, giving a new international impulse to the brand notably in the United-States. Today, Yon-Ka is present in 56 countries through a network of beauty salons, spas and aesthetic clinics.