PROBLEM TO BE SOLVED: To provide a skin external preparation which excels in safety, an effect of improving rough dry skin and an effect of preventing and improving wrinkles as aging prevention effects on the skin, adds firmness to the skin, prevents blotches to brighten the skin, and also excels in a feeling of use such as comfortableness to the skin and stickiness.SOLUTION: The skin external preparation includes (a) 0.05-20 wt.% arginine derivative, (b) 2-15 wt.% 4-8C glycol, (c) 0.0001-0.2 wt.% polyphenol, and (d) 0.1-2 wt.% chelating agent.