Joint/Skin
Hydrolyzed Marine Collagen Peptides
Also known as: Marine Collagen Hydrolysate, Fish Collagen Peptides, Collagen Peptides, Collagen Hydrolysate
Enzymatically broken-down collagen from fish sources with smaller molecular weight for enhanced absorption and bioavailability. Provides amino acids (glycine, proline, hydroxyproline) that support connective tissue synthesis.
Primary uses
- Skin elasticity and hydration
- Joint and connective tissue support
- Hair and nail health
- Gut barrier integrity
How it works
- Provides collagen amino acids for tissue repair
- Stimulates endogenous collagen synthesis
- Supplies glycine and proline for collagen cross-linking
- Supports extracellular matrix formation
Dosage
- Typical range
- 2.5-10 g daily (typically 5-10 g in studies)
- Timing
- Any time; consistent daily intake recommended
- With food
- Can be taken with or without food; mixes easily in beverages
- Duration
- Best results with consistent use over 8-12 weeks; benefits continue with ongoing use
- Special populations
- Safe for most populations; those with fish allergies should avoid or verify processing
Forms
- Hydrolyzed peptides (most common)· 70/100
- Native collagen (larger molecules, less absorbable)· 70/100
Safety
Common side effects
- Generally well-tolerated
- Rare: mild digestive upset
- Possible metallic taste (some brands)
Contraindications
- Fish or shellfish allergy
- Pescatarian/vegetarian concerns
Evidence notes
Multiple RCTs show improvements in skin elasticity, hydration, and joint comfort. Marine source has high bioavailability due to smaller peptide size. Meta-analyses support efficacy for skin and joint outcomes.
Grade B: Some human trials support key claims; further confirmation needed.
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