Peptide
Collagen Peptides
SaveHydrolyzed collagen fragments (typically types I and III) widely consumed as a dietary supplement for skin, joint, and bone health.
Quick verdict
Among the better-studied peptide supplements. Multiple RCTs show modest improvements in skin elasticity, joint pain, and bone density.
Evidence score
A rough internal score reflecting quantity, quality, and consistency of human evidence. Not a clinical recommendation.
What the research shows
Systematic reviews covering 15+ RCTs support modest benefits for skin hydration, wrinkle reduction, and joint pain. Effect sizes are small to moderate.
Benefits
- Improved skin elasticity and hydration in multiple RCTs
- Reduced joint pain in osteoarthritis studies
- Possible bone-density support in postmenopausal women
Dosage notes
Most trials use 2.5–15 g/day of hydrolyzed collagen orally.
Side effects
- Mild GI discomfort
- Unpleasant taste
- Rare allergic reactions to source protein
Who should be cautious
Generally safe. Sourced from bovine, porcine, or marine origins — allergen and dietary restrictions apply.
What this page cannot tell you
Benefits are modest and take 8–12 weeks to manifest. Product quality varies significantly.
Leaderboard scores
- Recovery45
- Longevity30
- Pain30
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