Trial reportNutrients2019
A Collagen Supplement Improves Skin Hydration, Elasticity, Roughness, and Density: Results of a Randomized, Placebo-Controlled, Blind Study.
Trial report in Nutrients, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06321770 (Oral Supplementation With Low Molecular Weight Collagen Peptides Improves Facial Wrinkles and Skin Hydration), which is not on this map. Cited by 61 papers, 5 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Oral Supplementation With Low Molecular Weight Collagen Peptides Improves Facial Wrinkles and Skin Hydration: Results From a Six-Week Randomized, Double-Blind, Placebo-Controlled Study
Who cites it
61 citing papers in PubMed, 5 syntheses or guidelines pooled it.
- Oral and topical peptides for skin aging: systematic review and meta-analysis of randomized controlled trials.Frontiers in medicine · 2026Pooled it
- Dietary interventions in skin ageing: a systematic review and meta-analysis.Journal of physiological anthropology · 2025Pooled it
- Effectiveness of dietary supplements for skin photoaging in healthy adults: a systematic review and meta-analysis of randomized controlled trials.Frontiers in medicine · 2025Pooled it
- Effects of Oral Collagen for Skin Anti-Aging: A Systematic Review and Meta-Analysis.Nutrients · 2023Pooled it
- Effectiveness of Dietary Supplement for Skin Moisturizing in Healthy Adults: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.Frontiers in nutrition · 2022Pooled it
- The Sustained Effects of Bioactive Collagen Peptides on Skin Health: A Randomized, Double-Blind, Placebo-Controlled Clinical Study.Journal of cosmetic dermatology · 2025Trial
- Dietary Supplement With Cherry Blossom Flower and Rosa roxburghii Tratt Fruit Extract Improves Skin Aging: A Randomized, Placebo-Controlled, Blinded Clinical Study.Journal of cosmetic dermatology · 2025Trial
- The evidence from in vitro primary fibroblasts and a randomized, double-blind, placebo-controlled clinical trial of tuna collagen peptides intake on skin health.Journal of cosmetic dermatology · 2024Trial
- Trial
- Oral Supplementation with Hydrolyzed Fish Cartilage Improves the Morphological and Structural Characteristics of the Skin: A Double-Blind, Placebo-Controlled Clinical Study.Molecules (Basel, Switzerland) · 2021Trial
- Trial
- Non-invasive and painless mid-infrared modulation increases collagen in human and mouse skin.Journal of advanced research · 2026Article
- Microbiome-Derived Metabolic Signaling in the Gut-Skin Axis: Implications for Nutricosmetics and Healthy Skin Aging.Nutrients · 2026Review
- Article
- Exploratory Prospective Assessment of Instrumental Skin Changes and Patient-Reported Outcomes After Microneedling of the Neck and Décolleté.Journal of clinical medicine · 2026Article
- Dietary Collagen Supplementation as a Strategy for Skin Health: A Narrative Review of Clinical Effects on Skin, Hair, Nails, and Wound Healing.Nutrients · 2026Review
- Targeted Supplementation and Nutritional Strategies for Healthy Aging: A Review of Physiological and Molecular Benefits.Current nutrition reports · 2026Review
- Integrative Dermatology for Longevity: The Synergy of Topical and Internal Approaches.Dermatology and therapy · 2026Review
- Oral Fish Collagen Peptide Complex Enhances Skin Rejuvenation and Systemic Health Biomarkers: A 90 Day Prospective Observational Study.Journal of cosmetic dermatology · 2026Observational
- Influence of Oral Collagen Peptides on Skin Biophysical Properties in Humans: A Narrative Review.Clinical, cosmetic and investigational dermatology · 2026Review
1 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The purpose of this randomized, placebo-controlled, blind study was to investigate the effects of the drinkable nutraceutical ELASTEN
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.