Collagen for skin: C → C
Merged additional source by Claude (gold-standard provenance sweep): a distinct, independently-verified paper ("Effects of Oral Collagen for Skin Anti-Aging: A Systematic Review and Meta-Analysis.", PMID 37432180) reporting the same intervention×outcome was found instead of being discarded as a duplicate — same claim, one more piece of real evidence.
What triggered this change
Effects of Oral Collagen for Skin Anti-Aging: A Systematic Review and Meta-Analysis.. Read: Substrate breakdown · PubMed.
What we said before vs now
Before
Grade C
After
Grade C
small improvements in skin elasticity/hydration in industry-funded trials
What this does not change
- Interaction profile for Collagen — unchanged unless there is a separate severity change.
- Dose guidance — unchanged unless the new evidence altered the studied dose range.
- Safety recommendations — unchanged unless a safety event is recorded separately.
Reviewer & methodology
Reviewed and signed by Substrate editorial (Independent research collective) on . Methodology v1.
See also
Cite this page
Reuse under CC-BY 4.0 with attribution to evidencebased.info.
Plain-text citation
Substrate. Collagen for skin: C → C. https://evidencebased.info/changes/2026-07-16-collagen-skin-c-to-c. Updated 2026-07-16.
BibTeX
@misc{substrate_0716collagenskinctoc,
author = {Substrate editorial},
title = {Collagen for skin: C → C},
year = {2026},
url = {https://evidencebased.info/changes/2026-07-16-collagen-skin-c-to-c},
note = {evidencebased.info}
}