83report
Report ≤ 60 days · 51dMetals Not reported
99.1%reported
4.77 measured / 5 mg labeled (-4.6%)
$5.02/measured mg
$4.79/labeled mg
-21% vs tracked median
All compounds
Repair peptide
TB-500
Synthetic fragment of thymosin beta-4 studied in cell migration research.
9 latest published reports from 7 tracked vendors · vial sizes 2, 5, 10, 20 mg · newest certificate Sep 4, 2026. Figures cover only the vendors PeptideAudits tracks, not the whole market.
- Latest reports
- 9
- Tracked median $/mg
- $6.33
- Lowest $/mg
- $2.52
Price per measured mg
Single-vial price ÷ mg measured on the certificate (labeled mg when quantity wasn't reported). Excludes shipping. Dashed line = tracked median. Green figure = with a publicly listed code.
- My Pure Peptide$2.52
- NG Peptide$3.08
- PeptidePro$4.61
- Swiss Chems$5.02
- Research Purpose Labs$6.33
- Research Purpose Labs$7.76
- Northline Labs$8.87
- Research Purpose Labs$14.99
- BioLongevity Labs$16.29
Latest published TB-500 reports
82report
Report ≤ 60 days · 52dMetals Pass
99.8%reported
20.78 measured / 20 mg labeled (+3.9%)
$3.08/measured mg
$3.20/labeled mg
-51% vs tracked median
72report
Report Over 90 days · 179dMetals Not reported
99.4%reported
9.91 measured / 10 mg labeled (-0.9%)
$2.52/measured mg
$2.50/labeled mg
-60% vs tracked median
61report
Report Over 90 days · 136dMetals Not reported
99.5%reported
10.15 measured / 10 mg labeled (+1.5%)
$4.61/measured mg
$4.67/labeled mg
-27% vs tracked median
59report
Report Over 90 days · 160dMetals Not reported
99.8%reported
10.13 measured / 10 mg labeled (+1.3%)
$16.29/measured mg
$16.50/labeled mg
+157% vs tracked median
53report
Report 61–90 days · 90dMetals Not reported
99.8%reported
10.27 measured / 10 mg labeled (+2.7%)
$6.33/measured mg
$6.50/labeled mg
0% vs tracked median
52report
Report Over 90 days · 166dMetals Not reported
99.5%reported
10.15 measured / 10 mg labeled (+1.5%)
$8.87/measured mg
$9.00/labeled mg
+40% vs tracked median
36report
Report Over 90 days · 969dMetals Not reported
99.8%reported
Quantity not reported · 2 mg labeled
$14.99/labeled mg
$14.99/labeled mg
+137% vs tracked median
26report
Report Over 90 days · 382dMetals Not reported
98.8%reported
5.283 measured / 5 mg labeled (+5.7%)
$7.76/measured mg
$8.20/labeled mg
+23% vs tracked median