Vitamin C for Skin Health
Water-soluble antioxidant vitamin and essential cofactor for collagen synthesis and non-haem iron absorption; supports immune cell function and skin integrity, and cannot be made by the human body.
Vitamin C for Skin Health
1 of 1 result reported a benefit, from 1 published study.
1 review of trials · the chart counts everything measured
- 1 reported a benefit
Colour keyReported a benefitNo clear benefitUnclearPossible harmAmber is for highlights, such as where the most research is. It never means a result was good.
- Sun damage improvementReported a benefitmeasurement not reportedTopical ascorbic acid improved photodamage compared to placebo in a small study.1 review of trials2005 study ↗
These are the figures the studies reported, not a prediction for any one person. Where several studies measured the same thing in the same unit, we show a simple average and say so. Every result is listed below.
See every resultThe connection
Acne, ageing skin, elasticity, hydration, wound healing, and overall skin appearance.
Also known as: Ascorbic Acid
Vitamin C × Skin Health: at a glance
Every published result for this pair, extracted and audited.
These charts count reported findings from published studies, grouped by reported benefit and study design. Study design is not a certainty grade.
Vitamin C / Skin Health: reported findings; one study may contribute several findings.
What the evidence shows
What this means: Counts describe research quantity, not treatment effectiveness or certainty.
| Category | Findings (count) |
|---|---|
| Benefit | 1 |
Study designs behind these findings
What this means: Counts describe research quantity, not treatment effectiveness or certainty.
| Category | Findings (count) |
|---|---|
| Meta-analysis | 1 |
- Studies
- 1
| Study | Outcome | Reported result | Uncertainty (as reported) | Study duration |
|---|---|---|---|---|
| Interventions for photodamaged skin. (PMID 15674885) | Photodamage improvement with topical ascorbic acid | Not reported | Not reported | Not reported |
Study results, as reported by the publications
Every measured outcome, one row per finding - numbers exactly as reported. Units are preserved where supplied; missing units are not inferred.
| Study and type | Reported sample and duration | Outcome measured | Reported result | What studies found |
|---|---|---|---|---|
| PMID 15674885 2005 Meta-analysis | Sample (as reported): Not reportedDuration: Not reported | Photodamage improvement with topical ascorbic acid | Not reported | Benefit |
Vitamin C × Skin Health: the evidence base
Hand-selected PubMed studies, linked to the originals.
Ordered by strength of evidence, then result direction.
01Efficacy, Durability, and Safety of Collagen Biostimulators Based on Poly-L-Lactic Acid (PLLA) and Calcium Hydroxyapatite (CaHA) in the Face: A Systematic ReviewFerreira ACM, et al. · Aesthetic plastic surgery · 2026PMID 41184662 ↗02Surviving Sepsis Campaign International Guidelines for the Management of Sepsis and Septic Shock in Children 2026Weiss SL, et al. · Pediatric critical care medicine : a journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies · 2026PMID 41869844 ↗03Surviving Sepsis Campaign International Guidelines for the Management of Sepsis and Septic Shock in Children 2026Weiss SL, et al. · Intensive care medicine · 2026PMID 41870559 ↗04Granulomatous Reactions From Microneedling: A Systematic Review of the LiteratureFriedmann DP, et al. · Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.] · 2025PMID 39584690 ↗05Effects of Collagen Supplements on Skin Aging: A Systematic Review and Meta-Analysis of Randomized Controlled TrialsMyung SK, et al. · The American journal of medicine · 2025PMID 40324552 ↗06Effects of collagen-based supplements on skin's hydration and elasticity: A systematic review and meta-analysisDanessa G, et al. · Indian journal of dermatology, venereology and leprology · 2025PMID 40826844 ↗Community experiences
Contributors volunteered; this does not establish treatment effectiveness or population incidence.
Reported changes
No publishable community breakdown is available. This does not establish that no reports exist.