Recovery evidence brief
Collagen peptides are broken-down collagen proteins usually used for tendons, joints, skin, and connective-tissue support. Gym users often take them for tendon resilience rather than direct muscle gain.
Most plausible for tendon, joint, and connective-tissue support when paired with loading; it is not a complete protein replacement.
2024 training meta-analysis: low-to-moderate certainty signals for FFM, tendon morphology, strength, and recovery.
Common protocols use collagen or gelatin plus vitamin C before tendon-loading work.
Judge collagen against connective-tissue claims, not as a primary protein source or broad muscle-building product.
Source Drawer
The score reflects evidence that the supplement does its stated job. Some jobs are direct, such as strength, endurance, or recovery; others are indirect, such as sleep, mood, appetite, or health support. A real effect can still receive a cautious practical rating when dose, safety, product quality, or audience fit remain uncertain.
Send the disputed claim, source link, and why it changes the practical verdict. Corrections that materially affect the claim, dose, caveat, or rating are prioritized.
Report a source or rating issue