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Joint/Skin

Hydrolyzed Marine Collagen Peptides

Also known as: Marine Collagen Hydrolysate, Fish Collagen Peptides, Collagen Peptides, Collagen Hydrolysate

B
Evidence

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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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider.