The present invention relates to the field of active compositions for use in cosmetic products for humans. More particularly, the present invention relates to a cosmetic composition comprising benzylsulfonyl-D-Ser-homoPhe-(4-amidino-benzylamide), or a salt thereof, and a polyalcohol. Moreover, it relates to the use of said composition for maintaining, restoring, and/or improving the skin hydration, and/or the transepidermal water loss level in human skin. The present invention further relates to the use of benzylsulfonyl-D-Ser-homoPhe-(4-amidino-benzylamide), or a salt thereof, in combination with a polyalcohol for the co-inhibition of both plasmin and urokinase activity in the skin and/or the scalp.