How it started
Cécile, Ernest, and Charles Mühlethaler founded Laboratoires Multaler from a shared interest in botany, aromatherapy, and phytotherapy.
The original goal
Their goal was to explore how aromatic plants and essential oils could support professional care, first for medical and physiotherapy settings and later for beauty institutes.
How the idea still shows up
The five-oil Quintessence became the signature of Yon-Ka’s phyto-aromatic approach and remains central to its treatment rituals.