TB-500 is currently in stock at 54 shops, all of which have third-party lab tests on file. Prices range from $24.99 to $164.97 per vial, with a median of $6.20 per mg. Vial sizes range from 5mg to 20mg. Last updated 11 September 2026.
209 shops are known to sell TB-500 — 60 with a live listing, 149 evidenced by a lab test in the last year. 74 listings are identified, of which 66 can be compared per milligram.
Bigger vials cost less per milligram. The vial, freeze-drying, labelling, lab test and shipping cost roughly the same whether it holds 5mg or 100mg, so per-milligram price falls as fill size rises. Compare within your size band rather than across the whole list.
| Shop | Size | Price | $/mg | Checked |
|---|---|---|---|---|
Smaller vials5mg · 10 offersfrom $5.20/mg | ||||
| eternalpeptides.comThird-party lab tests on file | 5mg | $25.99 | $5.20/mg | 17h ago |
| peptideruo.comThird-party lab tests on file | 5mg | $29.00 | $5.80/mg | 15h ago |
| OROS ResearchThird-party lab tests on fileClaimed | 5mg | $39.99 | $8.00/mg | 17h ago |
| aminousa.comThird-party lab tests on file | 5mg | $40.00 | $8.00/mg | 17h ago |
| arcanepeptides.comThird-party lab tests on file | 5mg | $40.00 | $8.00/mg | 17h ago |
| bleaugenics.comThird-party lab tests on file | 5mg | $48.00 | $9.60/mg | 17h ago |
| ascensionpeptides.comThird-party lab tests on file | 5mg | $54.00 | $10.80/mg | 15h ago |
| curo.youThird-party lab tests on fileClaimed | 5mg | $54.00 | $10.80/mg | 15h ago |
| peptidicresearch.comThird-party lab tests on file | 5mg | $60.00 | $12.00/mg | 17h ago |
| PrimeLab PeptidesThird-party lab tests on file | 5mg | $60.00 | $12.00/mg | 17h ago |
Larger vials10–20mg · 54 offersfrom $2.50/mg | ||||
| evolvebiopep.comThird-party lab tests on file | 10mg | $24.99 | $2.50/mg | 17h ago |
| mypurepeptide.comThird-party lab tests on file | 10mg | $25.00 | $2.50/mg | 17h ago |
| bulkpeptidesupplyThird-party lab tests on file | 10mg | $25.00 | $2.50/mg | 17h ago |
| goalphalabs.comThird-party lab tests on file | 10mg | $32.49 | $3.25/mg | 17h ago |
| researchreadypeptides.comThird-party lab tests on file | 10mg | $38.68 | $3.87/mg | 17h ago |
| peptideruo.comThird-party lab tests on file | 10mg | $39.00 | $3.90/mg | 15h ago |
| OROS ResearchThird-party lab tests on fileClaimedlisted as Selank N-Acetyl Amidate 10mg | 10mg | $44.99 | $4.50/mg | 17h ago |
| genpeptide.comThird-party lab tests on file | 10mg | $45.00 | $4.50/mg | 16h ago |
| uspurepeptides.comThird-party lab tests on file | 20mg | $91.35 | $4.57/mg | 15h ago |
| pureuspeptide.com/Third-party lab tests on file | 20mg | $91.35 | $4.57/mg | 15h ago |
| Zen AminosThird-party lab tests on fileClaimed | 10mg | $45.95 | $4.59/mg | 16h ago |
| eternalpeptides.comThird-party lab tests on file | 10mg | $47.99 | $4.80/mg | 17h ago |
| onedaycompounds.comThird-party lab tests on file | 10mg | $49.99 | $5.00/mg | 16h ago |
| thrivepeptides.usThird-party lab tests on file | 10mg | $49.99 | $5.00/mg | 17h ago |
| valorpeptides.comThird-party lab tests on file | 10mg | $49.99 | $5.00/mg | 16h ago |
| orbitrexpeptide.isThird-party lab tests on file | 10mg | $49.99 | $5.00/mg | 16h ago |
| Peptide PlugsThird-party lab tests on file | 10mg | $50.00 | $5.00/mg | 16h ago |
| purapeptides.comThird-party lab tests on file | 10mg | $50.00 | $5.00/mg | 17h ago |
| volterasciences.comThird-party lab tests on file | 10mg | $50.99 | $5.10/mg | 16h ago |
| doublerlabs.isThird-party lab tests on file | 10mg | $54.99 | $5.50/mg | 15h ago |
| coffeeandpeppers.comThird-party lab tests on file | 10mg | $54.99 | $5.50/mg | 17h ago |
| cosmicpeptides.comThird-party lab tests on file | 10mg | $54.99 | $5.50/mg | 15h ago |
| genpeptide.comThird-party lab tests on filelisted as TB4 (Thymosin Beta-4) 10mg | 10mg | $55.00 | $5.50/mg | 16h ago |
| gentlemanpeptides.comThird-party lab tests on file | 10mg | $55.00 | $5.50/mg | 17h ago |
| myoasislabs peptidesThird-party lab tests on file | 10mg | $57.00 | $5.70/mg | 15h ago |
| neurolabsresearch.comThird-party lab tests on file | 10mg | $57.53 | $5.75/mg | 16h ago |
| aiopeptides.comThird-party lab tests on file | 10mg | $59.40 | $5.94/mg | 17h ago |
| pureuspeptide.com/Third-party lab tests on file | 10mg | $59.85 | $5.99/mg | 15h ago |
| peptideminds.comThird-party lab tests on file | 10mg | $62.00 | $6.20/mg | 15h ago |
| verifiedpeptides.comThird-party lab tests on file | 10mg | $62.00 | $6.20/mg | 17h ago |
| OROS ResearchThird-party lab tests on fileClaimed | 10mg | $64.99 | $6.50/mg | 17h ago |
| optimasupply.isThird-party lab tests on fileClaimed | 10mg | $65.00 | $6.50/mg | 17h ago |
| globalaminos.com peptidesThird-party lab tests on file | 10mg | $65.99 | $6.60/mg | 16h ago |
| nupeps.comThird-party lab tests on filelisted as Thymosin Beta-4 10MG | 10mg | $66.00 | $6.60/mg | 17h ago |
| happypeptides.comThird-party lab tests on fileClaimed | 10mg | $68.00 | $6.80/mg | 17h ago |
| ezpeptides.comThird-party lab tests on filelisted as TB4 10mg | 10mg | $68.00 | $6.80/mg | 16h ago |
| nurevpeptides.comThird-party lab tests on file | 10mg | $69.00 | $6.90/mg | 17h ago |
| felixchem.isThird-party lab tests on file | 10mg | $70.00 | $7.00/mg | 17h ago |
| certified-pep.comThird-party lab tests on file | 10mg | $70.00 | $7.00/mg | 17h ago |
| polarispeptides.comThird-party lab tests on file | 10mg | $70.00 | $7.00/mg | 17h ago |
| purepeptides.bioThird-party lab tests on filelisted as Thymosin Beta 4 10MG | 10mg | $75.00 | $7.50/mg | 16h ago |
| uspurepeptides.comThird-party lab tests on file | 10mg | $76.00 | $7.60/mg | 15h ago |
| puretestedpeptides.comThird-party lab tests on file | 10mg | $79.99 | $8.00/mg | 15h ago |
| aminousa.comThird-party lab tests on file | 10mg | $80.00 | $8.00/mg | 17h ago |
| protidehealth.comThird-party lab tests on file | 10mg | $85.00 | $8.50/mg | 16h ago |
| peptidicresearch.comThird-party lab tests on file | 10mg | $90.00 | $9.00/mg | 17h ago |
| PrimeLab PeptidesThird-party lab tests on file | 10mg | $90.00 | $9.00/mg | 17h ago |
| buyironpeptides.comThird-party lab tests on file | 10mg | $94.00 | $9.40/mg | 16h ago |
| rhomeresearchThird-party lab tests on fileClaimedlisted as Thymosin Beta-4 – (10mg) | 10mg | $94.99 | $9.50/mg | 16h ago |
| aminoquestlabs.comThird-party lab tests on file | 10mg | $95.00 | $9.50/mg | 16h ago |
| betterbiosynthesis.comThird-party lab tests on file | 10mg | $98.00 | $9.80/mg | 16h ago |
| americanpeptides.usThird-party lab tests on file | 10mg | $100.00 | $10.00/mg | 15h ago |
| warrior-makers.comThird-party lab tests on file | 10mg | $139.00 | $13.90/mg | 15h ago |
| biolongevitylabs.comThird-party lab tests on file | 10mg | $164.97 | $16.50/mg | 17h ago |
Out-of-stock rows are excluded from the lowest, the median and the shop count
Read the TB-500 guide
Lab-test data, purity averages and what the evidence actually shows.