Collagen Supplements: Do They Help Skin?
The Science
Collagen makes up 75% of skin's dry weight. Production declines 1-1.5% yearly after 25. Can oral peptides rebuild skin collagen?
Research Results (2024 review of 19 RCTs)
- Elasticity improved 10-15% after 8-12 weeks
- Hydration increased 12-28%
- Wrinkle depth reduced 7-20%
- Dose-dependent results
Types
Marine (Type I)
Primary skin type. Smallest peptides for best absorption.
Bovine (Type I + III)
Provides both collagen types.
Dosage
5-10g hydrolyzed peptides daily for anti-aging. Take with vitamin C. Minimum 8 weeks.
