Polypeptides belonging to the family of late proteins of the cornified envelope (LCE), fragments of the polypeptide, isolated nucleotide sequences encoding the polypeptides, and cosmetic and/or pharmaceutical compositions containing such polypeptides are described. The polypeptides have cosmetic and/or therapeutic use to reinforce the barrier function of the epidermis, prevent and/or treat the signs of skin dryness and prevent and/or treat disorders of the barrier function or the weakening of the epidermis.
