Our Values



Natural Efficacy




For over 65 years, Yon-Ka has been sharing its passion for plants with consumers and beauticians around the world through its phyto-aromatic face, body and sun care combining the benefits of aromatherapy, aromachology, phytotherapy and gemmotherapy.

Its objective: to offer women and men, in any climate, the visible and lasting effectiveness of Nature's resources. Each active ingredient is scientifically analysed and dosed to give the skin the means to recover its balance, alleviate its problems and slow down the signs of time.


The effectiveness of each product - firming action, anti-wrinkle, moisturising, anti-glycation activity, anti-oxidant, anti-spot ..., is objectively validated by studies conducted by independent laboratories :

  • Objective tests by instrumental measurements,
  • Efficacy and tolerance tests under dermatological control,
  • Tests on cell cultures and skin explants,



Formulation Excellence



Driven by exacting standards and pharmaceutical rigour, our team of experts (doctors, pharmacists, chemical engineers, biologists, and bacteriologists) develop formulas with the right concentrations, with the best efficacy/safety ratio for visible and lasting results without aggressiveness.

Our gluten-free and mostly vegan formulas, contain on average 92% ingredients of natural origin, preferably organic. Each ingredient is rigorously selected and controlled by our laboratories, both on a physicochemical and bacteriological level.

Our formulation charter respects the strictest international regulations. It bans Parabens, Methylisothiazolinone (MIT), Aluminium salts, Butylhydroxyanisole (BHA), Sodium Lauryl Sulfate (SLS), Phthalates, Triclosan, GMOs, proven endocrine disruptors*. It continuously monitors the evolution of its formulas towards ever more naturalness.

Our production, 100% French, respects the GMP - ISO 22716 quality criteria at all stages of manufacture.


*According to the WHO definition and with reference to the Echa list (European Chemicals Agency)



Spa Treatment Expertise


The first step in the brand’s story was the creation of phyto-aromatherapy.

Aromatherapy is therapy using essential oils. The researchers took this idea and added active ingredients drawn from all the natural substances contained in a plant. This created new synergies and the notion of phyto-aromatherapy was born. 

Professionals were attracted to and convinced by the efficacy, the power of the balancing aromas, the immediately visible results after treatment, and the feedback from clients. At that time, Yon-Ka were only available in France.



Multisensory Experience


A Yon-Ka treatment is a unique, aromatic, holistic and personalised experience combining dermatological effectiveness and powerful multi-sensorial benefits.

And when efficiency is combined with pleasure, it is then the whole being that lights up; the skin regains its radiance, signs of fatigue fade, tensions are reduced under the action of the massage and relaxing or energizing essential oils of lavender, sweet orange, rosemary, jasmine...and those of the Yon-Ka Quintessence.


A parenthesis of Wellness that makes our clients say: "after a Yon-Ka treatment, I feel good, and it shows"


Discover the Yon-Ka experience in our Spas and Partner institutes



Sustainable Commitments


Today, more than ever, because we have the greatest respect for Nature and the women and men who work to protect it, our Laboratories make it a point of honour to seek out sustainable supply chains that are mindful of biodiversity and the environment.

Here are some concrete illustrations:

  • Many of the plants used in our productions are native to France (lavender, helichrysum, cypress, Brittany algae, beech buds, arnica.....)
  • Our tubes, cases, leaflets and glass bottles are 100% recyclable,
  • We finance the planting of fields of flowers and the installation of hives and colonies of bees with the association " Un Toit Pour Les Abeilles ",
  • Since 2017, we have been committed to  Breast Cancer Research. In 2023, our teams have agreed to support the Odyssea association by taking part in the Paris race.

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