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Updated: Nov 3, 2025
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In vitro Synthesis of Native, Fibrous Long Spacing and Segmental Long Spacing Collagen
Published on: September 20, 2012
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Functional Characterization of Undenatured Type II Collagen Supplements: Are They Interchangeable?
Robert B Harris1, Fernando L A Fonseca2, Matthew H Sharp3
1NEXT Bio Consulting Group, LLC, Midlothian, VA, USA.
Journal of Dietary Supplements
|June 1, 2021
Summary
Undenatured type II collagen supplements vary significantly in their physical and antigenic properties. Consumers should not assume all products labeled as undenatured type II collagen are interchangeable for joint health benefits.
Area of Science:
- Nutritional Science
- Immunology
- Biochemistry
Background:
- Undenatured (native) type II collagen is a dietary supplement ingredient.
- It is believed to support joint health by promoting oral tolerance.
- Therapeutic benefits are linked to the presence of antigenic epitopes, unlike denatured collagen.
Purpose of the Study:
- To investigate the physicochemical and analytical characteristics of commercially available type II collagen supplements.
- To explore product similarity in physical properties for consistent joint health benefits.
Main Methods:
- Analysis of collagen type II powders and capsules.
- Evaluated properties included color, particle size, quality profiles, fatty acid profiles, and electron microscopy.
- Assessed amino acid content and antigenic potential using ELISA assays.
Main Results:
- Significant differences were observed in the properties of powders labeled as undenatured type II collagen.
- Variations included collagen fiber size (electron microscopy) and antigenic configuration (ELISA).
Conclusions:
- Commercial undenatured type II collagen products exhibit marked differences.
- Consumers and practitioners should not assume interchangeability of products labeled as undenatured type II collagen.
Keywords:
ELISAdietary supplementsfunctional propertiesjoint healthphysical propertiesundenatured collagen type IIMore Related Videos
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