The present invention relates to a cosmetic use of a composition comprising a peptide of formula (I) or its derivative for improving physiological functions of the skin comprising the step of contacting skin, skin appendages or epidermal cells including keratinocytes with said composition and increasing the expression of Ubiad1 in such skin, skin appendages or epidermal cells. The invention also relates to a method of increasing the expression of Ubiad1 in skin, skin appendages or epidermal cells including keratinocytes, comprising contacting such skin, skin appendages or epidermal cells with a composition containing the peptide of formula (I) or the derivative thereof. The increased expression of Ubiad1 in the skin, skin appendages or epidermal cells will help for the improvement of the physiological functions of the skin.
