| abstract |
The present invention relates to a composition comprising a Forsythia velutina Nakai extract as an active ingredient, the composition of one aspect promoting collagen synthesis in the dermis layer, strengthening dense connective tissue between cells in the epidermal layer, and thickening the basement membrane between the epidermal layer and the dermis layer, thereby having the effect of strengthen the skin barrier, and having the effect of preventing skin aging by improving skin elasticity by inhibiting collagen degradation and promoting collagen synthesis in the dermis layer, or having the effect of prevention, improvement, treatment of atopic dermatitis. |