Paula's Choice Pro-Collagen Multi-Peptide Booster is a anti aging face serum for all skin types. A new anti-wrinkle and anti-fine line booster that joins the collection of boosters to replenish, tone and strengthen the skin at a deeper level thanks to the latest peptide technology, providing multi-layered support for visible results immediately and over time. The powerful peptide complex of Pro-Collagen Multi-Peptide Booster acts on key proteins in the skin's extracellular matrix for visible anti-ageing results in 15 minutes and long-lasting results after just 4 weeks.