Collagen vs Omega-3 for skin & hair
Short answer: For skin & hair, more users report improvement with Collagen — 96% of 71 reports, versus 90% of 48 for Omega-3.
Collagen has 9 meta-analyses and 22 randomized trials on PubMed; Omega-3 has 1,341 and 3,093.
Based on 292 reports about Collagen and 3,026 about Omega-3. Not medical advice.
| Collagen Supplement | Omega-3 Supplement | |
|---|---|---|
| Users say it helped | 56%helped120 reports · high confidence | 69%helped968 reports · high confidence |
| Verdict | Mixed | Mostly positive |
| Research | AResearch: Strong | AResearch: Strong |
| Meta-analyses / RCTs | 9 / 22 | 1,341 / 3,093 |
| Mainly used for | ||
| Mood % reporting improvement | 50% (2) | 86% (289) |
| Focus % reporting improvement | — | 85% (172) |
| Pain & inflammation % reporting improvement | 92% (24) | 93% (112) |
| Skin & hair % reporting improvement | 96% (71) | 90% (48) |
| Heart & lipids % reporting improvement | — | 83% (108) |
| Common side effects | fatigue, insomnia, drowsiness, histamine episode | fish burps, stomach issues, vivid dreams, fishy burps |
| Typical dose reported | 7 g / daily | 500/250 mg / daily |
The findings of improved hydration and elasticity were also confirmed in the subgroup meta-analysis. Based on results, ingestion of hydrolyzed collagen for 90 days is effective in reducing skin aging, as it reduces wrinkles and improves skin elasticity and hydration.
Int J Dermatol, 2021 ↗“Within hours of consumption my consistent upper back pain is literally gone, but along with it comes dizziness and a feeling of aloofness.”
For glycated hemoglobin, there was no significant effect in the meta-analysis. This systematic review with meta-analysis demonstrated that supplementation with omega-3 has protective effects on diabetes parameters.
Crit Rev Food Sci Nutr, 2022 ↗“I do supplement a lot of fish oil and vitamin A as retinyl palmitate though. It has really helped my depression, anxiety and ADHD and has enabled me to stop using more serious psychiatric drugs for those things.”
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Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate