Our Ingredients
Nature: our source of ingredients
Yon-Ka draws on our 60+ years of pioneering expertise in phyto-aromatic skincare to formulate innovative active ingredients with proven efficacy using essential oils, plant extracts, and fruits. Our professional 100% Française skincare brand offers products that can be used in place of or to complement medical aesthetic techniques for visible, lasting results that don’t aggravate skin. The core of Yon-Ka products is formed bya combination of four plant sciences:
To extract these essences, a team of experienced scientists manages and traces products from formulation to distribution.
From root to seed, Yon-Ka uses over 130 land and sea plants from all over the world, sourced from renewable and preferably organic resources, and achieves the perfect alliance between the essential oil, charged with solar energy, and all the other constituents of the plant.
Specifically adapted to different skin problems - impurities, dehydration, redness, wrinkles, etc. - these natural active ingredients provide an effective, targeted response for every skin type and every age.
Carefully selected and tested ingredients
All the raw materials used in our formulas are rigorously selected, analysed and controlled by our Laboratories to guarantee the purest active ingredients and maximum safety.
Some of our 80 face, body and suncare products contain over 95% of ingredients of natural origin; the average is 92%. These ingredients are 100% gluten-free and give priority to certified organic active ingredients and vegan formulas.
In accordance with European regulations, our products are not tested on animals and comply with a strict formulation charter which excludes Parabens, Methylisothiazolinone (MIT), Aluminium salts, Butylhydroxyanisole (BHA), Sodium Lauryl Sulfate (SLS), Phthalates, Triclosan, GMOs and known endocrine disruptors*.
*According to the WHO definition and with reference to the ECHA list (European Chemicals Agency).
Yon-Ka Quintessence: an exclusive synergy of 5 essential oils
Yon-Ka products make use of major discovery: la Quintessence,an exclusive complex of five essential oils (lavender, geranium, rosemary, cypress, and thyme) that are 100% natural, 100% pure, and 100% active. Quintessence is the scientific foundation on which Cécile, Ernest and Charles Mühlethaler established the brand in 1954.
A true Yon-Ka treasure, this active synergycombines dermatological efficacy with olfactory and aromachology benefits to support each person’soverall well-being and balance at every stage of life. This is Yon-Ka’s signature ingredient, included in 100% of our professional treatments and more than 60% of our at-home products.
Used in varying concentrations, this exclusive complex contributes to the effectiveness of all Yon-Ka products. Always pre-dosed for complete safety and optimum results, it complements the actions of the associated active ingredients. This is Yon-Ka’s signature ingredient, included in 100% of our professional treatments and 70% of our at-home products.
Yon-Ka Quintessence is often paired with other specific active ingredients like hyaluronic acid, vitamin C or fruit acids (AHAs). Yon-Ka Quintessence gives your skin a veritable skincare infusion for a gentler alternative to invasive aesthetic procedures..
These are the five essential oils: