The present disclosure relates to a cosmetic or dermatological sheet impregnated with a sunscreen fluid cosmetic composition. Specifically, the present disclosure relates to a cosmetic or dermatological sheet impregnated with a sunscreen fluid cosmetic composition and method to apply sunscreen to the human user's back or entire body. The sheet may have stitching and other composition or structural aspects to increase the structural integrity, hand slits, mitts or finger holes in the fabric, and/or areas that are not impregnated with a sunscreen composition to enable the user to more easily or tightly grasp the sheet during application of the sunscreen composition. Additionally, the sheet may be used to apply sunscreen to the user's back or entire body more than once before discarding the sheet and may include or consist of dyes, paints, tints or emboss to change the color or design of the sheet.