Cosmetic use of an extract of Khaya senegalensis

The present invention relates to the cosmetic use of an extract of Khaya senegalensis obtained by aqueous extraction to maintain and / or increase the expression of collagen XVIII in the skin and / or mucous membranes and / or scalp and / or annexes skin to maintain and / or increase the firmness and / or elasticity of the skin and / or mucous membranes and / or scalp and / or to reduce the visibility of skin pores and / or make the skin smooth and / or to limit and / or reduce sweating and / or limit and / or reduce hair loss and / or hair and / or increase hair growth and / or hair and / or reduce or limit the production of sebum. The present invention finally relates to a cosmetic treatment method comprising the application of an extract of Khaya senegalensis, or a cosmetic composition comprising it to maintain and / or increase the expression of collagen XVIII in the skin and / or mucous membranes and / or the scalp and / or skin appendages leather, to maintain and / or increase the firmness and / or elasticity of the skin / or mucous membranes and / or scalp and / or to reduce the visibility of skin pores and / or make the skin smoother and / or to limit and / or reduce sweating and / or limit and / or reduce hair loss and / or hair and / or increase hair growth and / or hair and / or reduce or limit the production of sebum.