Collagen Peptides
ProteinBioavailable peptides that may improve skin elasticity, joint comfort, and tendon recovery. Not a complete protein for muscle building.
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Typical dose
10–20 g daily
Evidence
Moderate (some RCTs)
Onset time
Cumulative: 4–12 weeks
Half-life
~6 hours
Forms
Powder, Capsule, Liquid
Source
animal
Best taken with
vitamin C
Best time of day
any
Bioavailability
4/5
Safety rating
5/5
Price per serving
$0.75
Vegan / GF / 3rd-party
✗ / ✓ / ✓
Common uses
- • Skin elasticity
- • Joint support
- • Tendon healing
- • Hair / nails
Effect profile
Strength
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Muscle
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Energy
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Focus
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Mood
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Sleep
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Immunity
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Recovery
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Longevity
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Common side effects
- • Mild GI upset
- • Aftertaste
Avoid if
- • Beef/fish allergy depending on source
Related protein supplements
Medical disclaimer
SupplementDuel is for educational purposes only and is not medical advice. Consult a physician before starting, stopping, or combining supplements.