Key ingredients in It Works! CollagenWorks include: • Collagen blend – Uses five specialized types of collagen from fish, chicken, bovine, and egg sources to supplement and replenish collagen for your skin and body† • Collagen peptides – Stimulate your natural, cellular biology to produce more collagen, hyaluronic acid, and elastin through these advanced peptides† • Vitamins A & C – Helps slow the effects of age on your skin and boost soft-tissue health by fighting oxidative stress from free-radicals†