Palmer’s Skin Success Extra Strength Tone Correcting Serum is formulated with a highly efficacious 10% concentration of Niacinamide and powerful youth enhancing ingredients: Amino Acid + a multi vitamin infusion for radiant, younger looking skin. Visible Results in as little as 1 Week*. After 8 weeks of use, participants saw: 100% smoother texture & more youthful appearance 98% lightened post-acne marks & discolouration 98% healthier looking skin & more dewy complexion 94% improved appearance of sun damage 94% clearer complexion with fewer blemishes/breakouts & reduced redness/blotchiness *May take up to 8 weeks; based on a 50 person independent clinical study.