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SupplementScience

Benefits of Collagen Peptides

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

Evidence-Based Benefits

  • Skin health — a 2019 meta-analysis of 11 RCTs (n=805) found collagen peptides significantly improved skin hydration, elasticity, and wrinkles vs placebo (de Miranda et al., International Journal of Dermatology)
  • Joint pain — 10 g/day collagen hydrolysate for 24 weeks reduced activity-related joint pain in athletes (Clark et al., 2008, Current Medical Research and Opinion, n=147)
  • Osteoarthritis — a 2019 systematic review found collagen supplementation reduced osteoarthritis pain and improved joint function (Garcia-Coronado et al., International Orthopaedics)
  • Tendon support — 15 g collagen + 50 mg vitamin C taken before exercise increased collagen synthesis markers in tendons and ligaments (Shaw et al., 2017, American Journal of Clinical Nutrition)
  • Bone density — collagen peptides at 5 g/day for 12 months improved bone mineral density at the femoral neck and spine in postmenopausal women (Konig et al., 2018, Nutrients, n=131)

What the Research Says

Collagen peptides have emerged as one of the most well-evidenced beauty and joint supplements. A 2019 meta-analysis of 11 RCTs confirmed benefits for skin hydration and elasticity. For joints, the Clark et al. (2008) study in athletes and multiple osteoarthritis trials show meaningful pain reduction. The Shaw et al. (2017) study on tendon collagen synthesis has changed sports medicine practice — many physiotherapists now recommend 15 g collagen + vitamin C before rehab exercises. Quality varies between products; look for hydrolyzed peptides (2-5 kDa molecular weight).

References

  1. (). Effects of hydrolyzed collagen supplementation on skin aging: a systematic review and meta-analysis. International Journal of Dermatology. DOI
  2. (). Study of the effectiveness of a food ingredient on joint pain in community-dwelling adults. Current Medical Research and Opinion. DOI
  3. (). Vitamin C-enriched gelatin supplementation before intermittent activity augments collagen synthesis. American Journal of Clinical Nutrition. DOI