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Best Peptides

Best MOTS-c Vendors by COA Purity

Find the best MOTS-c vendors ranked by third-party COA purity, content accuracy, and testing breadth. Compare 5 vendors side by side.

All Compounds

Best Score

Ion Peptides
71.0
1
Ion Peptides71.0
Purity: 99.72%Label: 10 MGMeasured: 10.38mgILS LaboratoriesFull QC Panel (HPLC, Identity, Endotoxin, Sterility, Heavy Metals)May 2026Lot: MC10-05072026
2
Amino Club59.0
Purity: 99.81%Measured: 10.62mgILS Laboratories7 tests: HPLC Purity, Net Peptide Content, Endotoxin, Sterility, Heavy Metals, Fentanyl Screen, AppearanceJul 2026Lot: MTC0003
3
Southern Aminos41.0
Purity: 99.85%Measured: 41.07mgILS LaboratoriesFull QC Panel (HPLC, Identity, Endotoxin, Sterility, Heavy Metals)Jul 2026Lot: MS400626N
4
Glow Aminos36.0
Purity: 99.71%Measured: 10.27mgILS LaboratoriesFull QC Panel (HPLC, Identity, Endotoxin, Sterility, Heavy Metals)Jul 2026Lot: GL-010231
5
Iron Protocol36.0
Purity: 99.71%Measured: 10.27mgILS LaboratoriesFull QC Panel (HPLC, Identity, Endotoxin, Sterility, Heavy Metals)Jul 2026Lot: IP-010231

Scoring methodology: Each COA is scored on a 100-point scale across three categories:

Purity (45 pts): Nine tiers from 99.95%+ (full marks) down to below 98% (10 pts). Small differences in purity matter — a 99.9% score earns more than 99.5%.

Content accuracy (35 pts): Compares the labeled strength to what was actually measured. Vials within 0-5% overfill receive full marks. Underfilled vials are penalized at twice the rate of overfilled ones, because getting less than you paid for is worse than getting a little extra.

Testing breadth (20 pts): More tests mean more transparency. COAs with 7+ tests (HPLC, LC-MS, endotoxin, sterility, heavy metals, etc.) earn full marks. A single test earns just 5 points.

This comparison evaluates lab documentation quality and transparency. It is not a safety or efficacy rating.

Research & Informational Use Only. PeptideScores does not sell, endorse, or facilitate the purchase of any compound for human use. All compounds referenced are intended for laboratory research purposes only. We review vendors; we do not provide dosing guidance, medical advice, or treatment recommendations.

Research & Informational Use Only. PeptideScores does not sell, endorse, or facilitate the purchase of any compound for human use. All compounds referenced are intended for laboratory research purposes only. We review vendors; we do not provide dosing guidance, medical advice, or treatment recommendations.