What it is: A nourishing foundation primer and antiaging serum that preps the skin prior to foundation application. What it does: This foundation primer also doubles as an antiaging serum. In addition to prepping the skin prior to foundation application and facilitating blending and extended wear, this reparative primer hydrates and smoothes skin to blur the appearance of fine lines and pores. Clinically tested and vegan, it is free of parabens, fragrance, gluten, mineral oil, and talc.