This is a concentrated whitening formula with 3x alpha arbutin works on dark neck, knees, groin, buttocks, arms, armpits, dull skin and uneven skin helps reduce the appearance of scars, wrinkles and dark spots this product contains alpha hydroxy acid (aha) that may increase your skin's sensitivity to the sun and particularly the possibility of sunburn use a sunscreen, wear protective clothing, and limit sun exposure while using this product and for a week afterwards see results in 7 days effect use morning and night