Founded in 1968, Leonor Greyl is a French company specialising in haircare products with a focus on plants and natural active ingredients. The Complexe Énergisant deep leave-in treatment for thinning hair is a case in point. Particularly rich in amino acids and plant extracts, this treatment acts directly on the scalp. It increases the energy resources that promote the hair's vigour and vitality. An absolute must-have to grab immediately.