Skip to main content
SupplementScience

Types of Collagen Peptides: Forms & Bioavailability

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

Forms Comparison

FormBioavailabilityBest For
Hydrolyzed Collagen Peptides (Type I & III)HighSkin, hair, nails, and general connective tissue; most versatile
Undenatured Type II Collagen (UC-II)Low (immune-modulating)Joint health via immune modulation; very low dose (40 mg/day)
Marine Collagen (Type I)HighSkin focus; smaller peptide size; pescatarian-friendly
Collagen + Vitamin CHighEnhanced collagen synthesis; vitamin C is required cofactor

Hydrolyzed Collagen Peptides (Type I & III)

Bioavailability: High. Best for: Skin, hair, nails, and general connective tissue; most versatile.

Undenatured Type II Collagen (UC-II)

Bioavailability: Low (immune-modulating). Best for: Joint health via immune modulation; very low dose (40 mg/day).

Marine Collagen (Type I)

Bioavailability: High. Best for: Skin focus; smaller peptide size; pescatarian-friendly.

Collagen + Vitamin C

Bioavailability: High. Best for: Enhanced collagen synthesis; vitamin C is required cofactor.

References

  1. (). Effects of hydrolyzed collagen supplementation on skin aging: a systematic review and meta-analysis. International Journal of Dermatology. DOI
  2. (). Study of the effectiveness of a food ingredient on joint pain in community-dwelling adults. Current Medical Research and Opinion. DOI
  3. (). Vitamin C-enriched gelatin supplementation before intermittent activity augments collagen synthesis. American Journal of Clinical Nutrition. DOI