Supplement reference
Collagen Type II
A sourced reference on Collagen Type II identity, evidence limits and safety context.
Source and review status
Published sources checked
Sources checked on: 6 September 2026
Qualified clinical review: Pending. This page has not been clinically reviewed.
About this source check
AI-assisted editorial source checking covers the cited material and its stated limits. It is not a systematic review, verification of a supplied product, or clinical sign-off.
Editorial role: InfoAddict. Last material change: 6 September 2026. Next source review: 6 March 2027.
What it is
Type II collagen products can be undenatured or hydrolysed, and those forms should not be treated as equivalent.
Sources: National Library of Medicine, PubMed
What the cited evidence shows
A 2023 review with limited meta-analysis covered eight randomised trials of undenatured type II collagen in adults with early knee osteoarthritis. It cannot be generalised to hydrolysed collagen, other joints or people without the studied condition.
Sources: National Library of Medicine, PubMed
Limits and safety context
This is a description of a specific research setting, not a joint-disease treatment plan.
Sources: National Library of Medicine, PubMed
Published sources
- Undenatured type II collagen in knee osteoarthritis: review and limited meta-analysis
National Library of Medicine, PubMed. 2023; accessed 6 September 2026.
Supports: Eight RCTs of undenatured type II collagen in early knee osteoarthritis; not hydrolysed collagen or general joint pain.
Change history
| Date | Change | Clinical-review status |
|---|---|---|
| 6 September 2026 | Source-linked reference published | Pending |
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