This multi-tasking power serum helps slow the aging process, lift and firm sagging skin, and brighten discoloration. Firming Serum with Phyto-Stem cells also contains 4 amino peptides to help stimulate new cell growth and reprogram aging skin fibroblasts to increase collagen production. Stem cells derived from Swiss Spätlauber apple, which is known for it's ability to last months without decay due to these stem cells.