Decleor Paris, created in 1974 by Solange Dessimoulie, is celebrating its 40th anniversary this year.   During a time when the cosmetic industry still favored active ingredients of animal origin, Dessimoulie devoted her training to discovering a new innovation in skin health: the powerful and extraordinary benefits of essential oils. The firm was one of the the first brands to introduce the term aromatherapy to cosmetics and, as a true pioneer in the industry, created the brand's cult produ...