What it is: Pro-strength retinol results with zero side effects. Formulated with our proprietary non-drying, non-irritating deep-release, overnight retinol repair (vitamin A) to help firm skin, fade lines, and smooth texture. This powerhouse nightly serum is blended with hydrating cross-linked hyaluronic acid filling spheres to boost moisture levels for a consistent, youthful glow. What it does: BeautyBio's "smart" serum tech helps identify and correct damage with boosting stem cell technology and powerful peptides to enhance skin's natural overnight rejuvenation process. Awake to firmer, healthier-looking skin by morning. How to use: For PM use. Cleanse face and pat dry. Massage 1-2 pumps of The Nightly collagen peptide serum onto the entire face. Follow with your favorite facial serum or moisturizer. Great to know: IN A CONSUMER PERCEPTION SURVEY AFTER USING THE NIGHTLY FOR 30 DAYS: 96% said skin appeared smoother 96% said overall complexion looked better 93% said skin appeared more radiant 93% said skin appeared more hydrated 93% said skin appeared firmer Imported