Treats your skin with a burst of hydration for a healthy glow in just seconds. Use by itself to add a youthful luminous finish to your skin. The Retinol Anti-Aging Radiance Booster also serves as a primer which gives your face a burst of hydration and an instant luminous glow. Retinol smoothes the skin while peptides improve the look of firmness and tone. Use it alone for a radiant finish or under makeup as a glow primer.