The Leonor Greyl hair care range is the result of a love affair between a hair fanatic and a zealous botanist. French-born Leonor Greyl and her husband co-founded the environmentally friendly brand in 1968, before natural products were popular. Years later, the company is still family-run, with a loyal following in Europe and across the globe. Hair oil classic L'Huile de Leonor Greyl is a luxurious staple for soft, lustrous tresses, while the hair masque is a must for great-smelling, healthy hair.