Collagen vs MK-677 for recovery
Short answer: For recovery, more users report improvement with MK-677 — 99% of 81 reports, versus 92% of 39 for Collagen.
Collagen has 9 meta-analyses and 22 randomized trials on PubMed; MK-677 has 0 and 15.
Based on 246 reports about Collagen and 692 about MK-677. Not medical advice.
| Collagen Supplement | MK-677 Substance | |
|---|---|---|
| User score | 50 | 45 |
| Verdict | Mixed | Mixed |
| Positive of reports that state an outcome | 55% | 41% |
| Reports | 246 | 692 |
| Research | AResearch: Strong | BResearch: Moderate |
| Meta-analyses / RCTs | 9 / 22 | 0 / 15 |
| Mainly used for | ||
| Weight loss % reporting improvement | — | 63% (43) |
| Appetite % reporting improvement | — | 62% (152) |
| Focus % reporting improvement | — | 0% (3) |
| Energy % reporting improvement | 33% (3) | 39% (49) |
| Sleep % reporting improvement | 100% (7) | 78% (123) |
| Anxiety % reporting improvement | — | 5% (21) |
| Mood % reporting improvement | 50% (2) | 59% (17) |
| Performance % reporting improvement | 100% (5) | 88% (68) |
| Recovery % reporting improvement | 92% (39) | 99% (81) |
| Pain & inflammation % reporting improvement | 91% (22) | 67% (18) |
| Digestion % reporting improvement | 100% (2) | 50% (2) |
| Libido % reporting improvement | — | 25% (8) |
| Hormones % reporting improvement | — | 41% (34) |
| Blood sugar % reporting improvement | — | 5% (44) |
| Heart & lipids % reporting improvement | — | 8% (12) |
| Skin & hair % reporting improvement | 95% (64) | 92% (24) |
| Common side effects | fatigue, insomnia, drowsiness, histamine episode | water retention, fatigue, hunger, stomach issues |
| Typical dose reported | 7 g / daily | 12.5 mg / before dinner |
CollagenFull Collagen profile →
Latest review conclusion
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 ↗What a user said
“Within hours of consumption my consistent upper back pain is literally gone, but along with it comes dizziness and a feeling of aloofness.”
MK-677Full MK-677 profile →
What a user said
“From my own experience (also have suffered from poor sleep), i experienced a noticeable increase in sleep quality even with a low dose.”
Related comparisons
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