Hyaluronic Acid: hydrates and plumps the skin; Mandelic Acid: smooths and refines the skin; Visibly improved skin & evened skin tone over time; 9/10 women said their skin tone looked more even; 9/10 women said their overall skin felt improved; For light coverage, apply with fingers, a damp sponge, or our dual-ended Airbrush Foundation Brush #2; For medium coverage and maximum results, apply with a flat foundation brush or use Airbrush Foundation Brush #2 and apply using a stippling motion