Cosmetic use of the essential oil of Laserpitium siler L. against the signs of aging of the skin and as a skin antioxidant

A cosmetic method for treating signs of skin aging, signs of photoaging, skin disorders induced by an oxidative stress selected from the group consisting of at least one of a dull appearance of a subject's complexion, hyperpigmentation of the skin, a loss of quality of a subject's sebum, and a feeling of discomfort on a subject's scalp, in a subject in need thereof, the method comprising topically applying to the skin or scalp of said subject a composition comprising an effective amount of an essential oil of Laserpitium siler L., wherein the essential oil of Laserpitium siler L. comprises limonene in an amount ranging from 40% to 80% by weight relative to the total weight of said essential oil, perillaldehyde in an amount ranging from 15% to 40% by weight relative to the total weight of said essential oil, and chamazulene being present in a positive amount of up to 5% by weight relative to the total weight of the essential oil.