Key findings from detailed records
Specific collagen peptides (VERISOL, 2.5 g/day) reduced eye-wrinkle volume in a trial of 114 women aged 45–65 over 8 weeks. This finding concerns a tested preparation and skin measurement; it does not establish the same benefit for every collagen product.
KNOWLEDGE RECORD
- Category
- Skin and connective tissue
- Last Reviewed
Names and related search termsCollagen peptides / Bioactive collagen peptides / Collagen / VERISOL / Collagen
Study type: human intervention study.
OUTCOME-SPECIFIC EVIDENCE
Scientific Evidence Profile
Assessment pending
An outcome-specific assessment has not yet been completed. This is not a finding that the ingredient is ineffective. The study records below remain available.
This profile concerns the stated outcome and population, not the ingredient as a whole. It is not a probability of benefit, a safety rating, a product efficacy rating or an indication of product adoption.
How we assess evidenceIngredient Profile
- What material is being studied?
- Collagen peptides are produced by breaking collagen into shorter chains. Laboratory work shows that hydrolysis and separation yield fractions with different molecular sizes and properties. [1]
Sources for this profile
Compound properties and formulation properties are different. These sources do not establish the efficacy of a finished supplement.
- Antioxidant and functional properties of cowhide collagen peptides. Identity and preparation checked against the study abstract. Funding details are not verified for this profile source. Conflict-of-interest details are not verified here.
Profile sources checked:
Read the evidence in context
- Evidence: what was measured in the stated population or experimental model.
- Inference: an interpretation connecting findings; its applicability depends on the study conditions.
- Hypothesis: a proposed explanation or effect that remains to be tested.
Why It Matters #
Does research on specific peptides apply to every collagen product? Check the detailed records for study conditions and use the literature map to compare other populations and outcomes.
What Was Studied #
114 women aged 45–65 Randomized, double-blind, placebo-controlled trial. Outcomes: Eye wrinkle volume; skin-related components were also assessed in a subgroup.[1]
What Was Found #
Wrinkle volume improved at weeks 4 and 8. Changes in procollagen I and elastin were also observed in a subgroup.[1]
What the Evidence Means #
A specific formulation, women and a short duration. This does not establish benefits for all collagen foods, joints or connective tissue throughout the body.[1]
Comparing similar populations, formulations, durations and outcomes helps identify where findings agree and where they differ.
A 2026 technical reanalysis questioned pooled skin-benefit estimates because some reviews combined incompatible measurements and extracted data incorrectly. It does not erase a reported result from one formulation; it limits confidence in a universal collagen effect. The authors declared no conflicts; this is a methodological reanalysis, not a new intervention trial. Grimes & Mahto, 2026
What We Can Learn #
Check peptide specifications, intake and the site measured. This is a different question from the role of dietary protein.
What Remains Unknown #
Further questions include reproducibility across populations and formulations, and the long-term balance of benefits and harms. Use the literature map as a starting point for these questions.
LITERATURE MAP / 10 PAPERS
Compare papers by conditions and findings.
A literature map covering different populations, outcomes and formulations. Read alongside detailed records to avoid treating one trial as the conclusion for an entire ingredient.
Selected: 2026-09-21. Bibliographic information checked against Europe PMC / PubMed. Editorial selection considered major papers and a range of populations and questions. This is not a systematic search covering all recent research.
10 RECORDS
A dash marks fields outside the bibliographic record. Use detailed records to compare findings and design records to connect mechanisms.
No papers match. Change the search conditions.
The literature map is an index of research questions and references. Individual assessment of results, doses, funding and COI is limited to the detailed study records. Related reports from the same trial may be included; paper counts are not counts of independent trials.
Explore the research Study Records
Listed doses describe study conditions, not recommended intake.
Oral intake of specific bioactive collagen peptides reduces skin wrinkles and increases dermal matrix synthesis.
PubMed 24401291DOI: 10.1159/000355523
- Authors
- Proksch E, Schunck M, Zague V, Segger D, Degwert J, Oesser S.
- Journal
- Skin pharmacology and physiology
- Publication year
- 2014
- Study design
- Randomized, double-blind, placebo-controlled trial
- Participants
- 114 women aged 45–65
- Dose and intervention
- Specific bioactive collagen peptides (VERISOL), 2.5 g/day
- Duration
- 8 weeks plus 4 weeks of follow-up
- Outcomes and their role in the study
- Eye wrinkle volume; skin-related components were also assessed in a subgroup.
- Findings
- Wrinkle volume improved at weeks 4 and 8. Changes in procollagen I and elastin were also observed in a subgroup.
- Limitations
- A specific formulation, women and a short duration. This does not establish benefits for all collagen foods, joints or connective tissue throughout the body.
- Funding
- Not verified within the scope of this review. This does not mean “no funding” or “no conflicts of interest.”
- Conflict of Interest
- Not verified within the scope of this review. This does not mean “no funding” or “no conflicts of interest.”
- Scope of source review
- Bibliographic information and abstract checked. Full text and detailed funding/COI information have not been verified.
Cite this page
LÍFSVARÐA. Collagen peptides: Does research on specific peptides apply to every collagen product? Version 1.1 / Updated 2026-10-24
https://lifsvarda.com/knowledge/collagen/Edited by LÍFSVARÐA (product brand).Editorial policy
Sources and updates
- Proksch E, Schunck M, Zague V, Segger D, Degwert J, Oesser S. (2014). Oral intake of specific bioactive collagen peptides reduces skin wrinkles and increases dermal matrix synthesis.Bibliographic information and abstract checked. Full text and detailed funding/COI information have not been verified.
First published: 2026-09-21 / Version 1.1. Updated 2026-09-23: Added a research comparison table and links to design records. Source notes identify the scope of verification when the full paper has not been reviewed. Research summaries and LÍFSVARÐA’s interpretation are distinguished.