Reduces 5 years of stubborn spots like acne marks in 4 weeks Niacinamide and AHA Super Cream reduce stubborn spots for clearer, smoother skin. A scientifically advanced formula reduces stubborn spots, including acne marks and discoloration. AHA (Lactic Acid) acts on skin surface while Niacinamide penetrates 10 layers deep to effectively target root causes of spots across skin layers.; Dermatologist-tested formula does not clog pores.