Benefits of glycolic acid use provides a remarkably even exfoliation of the skin releases and dissolves dead skin cells clearing up blocked pores and blackheads a very effective acne treatment particulary cystic acne which is caused by deep blockages of dead skin cells and sebum reduces fine lines and signs of premature aging by increasing cell turnover meaning younger healthier cells are now visible on the skin39s surface acne scars and other scar lesions respond well to