| 摘要 |
The present invention relates to a method for transdermal administration of ascorbic acid and to a skin-care apparatus. The present invention provides a method for transdermal administration of ascorbic acid, characterized in that a metal phosphate salt of ascorbic acid is penetrated into skin by iontophoresis, which comprises periodically applying a positive voltage of 3 to 20v, a negative voltage of 3 to 20v and current of 0.01 to 1.0 mA to transdermally administrate an aqueous solution composition comprising a metal phosphate salt of ascorbic acid, and a skin-care apparatus using the iontophoresis and ultrasonic waves. The method of the present invention exhibits the effects of freckle removal, melasma remove, acne removal, sebaceous matter removal, wrinkle removal, skin-aging prevention and whitening. |
