Summary
Some people use collagen supplements to try to improve skin, hair, nails, and joint health. Research suggests collagen supplements may help improve skin appearance, including reducing wrinkles and increasing skin elasticity.
Key Facts
- Collagen is a protein that helps keep skin firm and elastic.
- As people age, their collagen levels naturally decrease.
- Collagen supplements often come in forms called hydrolyzed collagen peptides and type II collagen.
- Hydrolyzed collagen is made from animal sources and is used for skin and joint health.
- Studies show collagen supplements can improve skin hydration, elasticity, and reduce wrinkles.
- A 2021 review of 19 studies found improvements in skin condition with collagen use.
- Another review in 2023 found similar skin improvements in 23 studies with over 1,400 participants.
