Multi-functional applicator

A method for delivering ascorbic acid to the skin of a subject in need thereof comprising the steps of:

• providing a single-use, disposable applicator;
• said applicator having a hollow body having a first compartment containing a solid vitamin-containing composition comprising ascorbic acid or its pharmaceutically acceptable sales or esters, a second compartment containing a pharmaceutically acceptable carrier system;
• wherein said hollow body includes a single longitudinal divider between said first compartment containing said vitamin-containing composition and said second compartment containing said pharmaceutically acceptable carrier system;
• said applicator having a means for mixing said solid vitamin-containing composition and said pharmaceutically acceptable carrier system to form an ascorbic acid carrier composition inside said hollow body by creating one or more predetermined localized openings in said longitudinal divider;
• said mixing means comprising one or more zones of weakness in said longitudinal divider or one or more puncture tips extending from an inner surface of said hollow body that are capable of puncturely engaging said longitudinal divider;
• said applicator having an absorbent material positioned at a first end of said hollow body;
• and said applicator having an abrasive material positioned at a second end of said hollow body;
• abrading said skin using said abrasive material;
• mixing said solid vitamin-containing composition and said pharmaceutically acceptable carrier system together in said hollow body to form an ascorbic acid carrier composition;
• applying said ascorbic acid carrier composition to said abraded skin;
• and
• wherein said abrading step occurs before said mixing step.