A 10% Glycolic Acid Night Cream Overproduction of sebum. initial indications of aging. imperfections. The GLYCO-A® peel is great for removing brown spots and other fine lines and wrinkles as well as other signs of aging because of its exfoliating action! Because it controls sebum production, it also enhances the skin's natural moisturizing processes and reduces the appearance of blackheads. As a result, it is a true multi-action treatment that will enable you to noticeably enhance the look of your skin. As long as the treatment plan is followed, of course!