Thymosin-Alpha 1 (A1) is currently in stock at 59 shops, all of which have third-party lab tests on file. Prices range from $25.00 to $139.00 per vial, with a median of $6.80 per mg. Vial sizes range from 5mg to 20mg. Last updated 11 September 2026.
139 shops are known to sell Thymosin-Alpha 1 (A1) — 65 with a live listing, 74 evidenced by a lab test in the last year. 70 listings are identified, of which 61 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 $5.00/mg | ||||
| mypurepeptide.comThird-party lab tests on filelisted as Thymosin Alpha-1 5mg | 5mg | $25.00 | $5.00/mg | 17h ago |
| ameano peptidesThird-party lab tests on filelisted as Thymosin Alpha 1 5mg | 5mg | $35.00 | $7.00/mg | 16h ago |
| goalphalabs.comThird-party lab tests on filelisted as Thymosin Alpha-1 (5mg) | 5mg | $38.99 | $7.80/mg | 17h ago |
| ruo.bioThird-party lab tests on filelisted as Thymosin Alpha-1 5mg | 5mg | $42.00 | $8.40/mg | 16h ago |
| cosmicpeptides.comThird-party lab tests on filelisted as Thymosin Alpha-1 | 5mg | $42.99 | $8.60/mg | 15h ago |
| OROS ResearchThird-party lab tests on fileClaimedlisted as Thymosin Alpha-1 5mg | 5mg | $44.99 | $9.00/mg | 17h ago |
| aiopeptides.comThird-party lab tests on filelisted as Thymosin Alpha-1 5mg | 5mg | $49.50 | $9.90/mg | 17h ago |
| hyteresearchdivision peptidesThird-party lab tests on filelisted as Thymosin Alpha-1 – 5mg | 5mg | $49.99 | $10.00/mg | 15h ago |
| biopeptitech.comThird-party lab tests on filelisted as Thymosin Alpha-1 (5mg) | 5mg | $51.00 | $10.20/mg | 16h ago |
| aminousa.comThird-party lab tests on filelisted as Thymosin Alpha-1 5mg | 5mg | $60.00 | $12.00/mg | 17h ago |
Larger vials10–20mg · 51 offersfrom $2.50/mg | ||||
| bulkpeptidesupplyThird-party lab tests on filelisted as Thymosin Alpha-1 10 mg | 10mg | $25.00 | $2.50/mg | 17h ago |
| Zen AminosThird-party lab tests on fileClaimedlisted as THYMOSIN ALPHA-1 10mg | 10mg | $28.95 | $2.90/mg | 16h ago |
| vandl-labs.comThird-party lab tests on filelisted as Thymosin Alpha-1 10mg Peptide | 10mg | $32.49 | $3.25/mg | 17h ago |
| s1research.netThird-party lab tests on fileClaimedlisted as Thymosin Alpha 1 – 10mg | 10mg | $38.50 | $3.85/mg | 15h ago |
| researchchemhq.coThird-party lab tests on filelisted as Thymosin Alpha-1 | 10mg | 10mg | $44.99 | $4.50/mg | 16h ago |
| plumlabsresearch peptidesThird-party lab tests on filelisted as Thymosin Alpha-1 10mg | 10mg | $45.00 | $4.50/mg | 15h ago |
| peptideruo.comThird-party lab tests on filelisted as Thymosin Alpha-1 10mg | 10mg | $49.00 | $4.90/mg | 15h ago |
| rhomeresearchThird-party lab tests on fileClaimedlisted as Thymosin Alpha‑1 – (10mg) | 10mg | $49.99 | $5.00/mg | 16h ago |
| genpeptide.comThird-party lab tests on filelisted as Thymosin-Alpha 1 10mg | 10mg | $50.00 | $5.00/mg | 16h ago |
| pureuspeptide.com/Third-party lab tests on filelisted as Thy Alpha 1 10mg | 10mg | $53.55 | $5.36/mg | 15h ago |
| purapeptides.comThird-party lab tests on filelisted as Thymosin Alpha-1 | 10mg | $55.00 | $5.50/mg | 17h ago |
| ezpeptides.comThird-party lab tests on filelisted as Thymosin Alpha 1 10mg | 10mg | $58.00 | $5.80/mg | 16h ago |
| nurevpeptides.comThird-party lab tests on filelisted as Thymosin Alpha 1 10mg | 10mg | $59.00 | $5.90/mg | 17h ago |
| nelapeptides.netThird-party lab tests on fileClaimedlisted as Thymosin Alpha-1 10mg | 10mg | $59.00 | $5.90/mg | 17h ago |
| puratekpeptides.comThird-party lab tests on filelisted as Thymosin Alpha-1 10mg | 10mg | $59.95 | $6.00/mg | 15h ago |
| nusciencepeptides.comThird-party lab tests on filelisted as Thymosin Alpha 1 – 10mg | 10mg | $59.99 | $6.00/mg | 17h ago |
| volterasciences.comThird-party lab tests on filelisted as Thymosin Alpha-1 10MG | 10mg | $59.99 | $6.00/mg | 16h ago |
| Peptide PlugsThird-party lab tests on filelisted as Thymosin Alpha-1 10mg | 10mg | $60.00 | $6.00/mg | 16h ago |
| nulifepeptides.comThird-party lab tests on filelisted as Thymosin Alpha-1 (10mg) | 10mg | $60.00 | $6.00/mg | 15h ago |
| ameano peptidesThird-party lab tests on filelisted as Thymosin Alpha 1 10mg | 10mg | $62.00 | $6.20/mg | 16h ago |
| felixchem.isThird-party lab tests on filelisted as Thymosin-α1 10mg | 10mg | $64.99 | $6.50/mg | 17h ago |
| onedaycompounds.comThird-party lab tests on filelisted as THYMOSIN ALPHA 1 10MG | 10mg | $64.99 | $6.50/mg | 16h ago |
| polarispeptides.comThird-party lab tests on filelisted as Thymosin Alpha-1 10mg | 10mg | $65.00 | $6.50/mg | 17h ago |
| myoasislabs peptidesThird-party lab tests on filelisted as Thymosin Alpha-1 10mg | 10mg | $65.00 | $6.50/mg | 15h ago |
| riptidewellness.comThird-party lab tests on filelisted as Thymosin Alpha-1 (10mg) | 10mg | $65.00 | $6.50/mg | 16h ago |
| peptidecrafters.comThird-party lab tests on filelisted as Thymosin alpha 1 (10mg) | 10mg | $65.00 | $6.50/mg | 17h ago |
| atomiklabz.comThird-party lab tests on filelisted as Thymosin Alpha 1 – 10mg | 10mg | $65.00 | $6.50/mg | 17h ago |
| purepeptides.bioThird-party lab tests on filelisted as Thymosin Alpha 1 20MG | 20mg | $135.00 | $6.75/mg | 16h ago |
| libertypeptides.comThird-party lab tests on filelisted as Thymosin Alpha-1 (10mg) | 10mg | $68.00 | $6.80/mg | 17h ago |
| uspurepeptides.comThird-party lab tests on filelisted as Thy Alpha 1 | 10mg | $68.00 | $6.80/mg | 15h ago |
| trulabpeptides.comThird-party lab tests on filelisted as Thymosin Alpha 1 – 10mg | 10mg | $69.00 | $6.90/mg | 16h ago |
| orbitrexpeptide.isThird-party lab tests on filelisted as Thymosin Alpha-1 10mg | 10mg | $69.99 | $7.00/mg | 16h ago |
| ascensionpeptides.comThird-party lab tests on filelisted as Thymosin Alpha 1 (10MG) | 10mg | $71.00 | $7.10/mg | 15h ago |
| tydes.isThird-party lab tests on filelisted as Thymosin Alpha-1 10 mg | 10mg | $74.99 | $7.50/mg | 17h ago |
| happypeptides.comThird-party lab tests on fileClaimedlisted as Thymosin Alpha-1 | 10mg | $76.00 | $7.60/mg | 17h ago |
| nupeps.comThird-party lab tests on filelisted as Thymosin Alpha-1 10MG | 10mg | $78.00 | $7.80/mg | 17h ago |
| certified-pep.comThird-party lab tests on filelisted as THYMOSIN ALPHA-1 10MG | 10mg | $78.00 | $7.80/mg | 17h ago |
| purepeptides.bioThird-party lab tests on filelisted as Thymosin Alpha 1 10MG | 10mg | $80.00 | $8.00/mg | 16h ago |
| aminoquestlabs.comThird-party lab tests on filelisted as Thymasin alpha-1 10mg | 10mg | $85.00 | $8.50/mg | 16h ago |
| nurapeptide.comThird-party lab tests on filelisted as TA1 (10mg) – Analytical Research Standard | 10mg | $85.00 | $8.50/mg | 15h ago |
| simplepeptide.comThird-party lab tests on filelisted as Thymosin Alpha-1 10mg | 10mg | $86.00 | $8.60/mg | 17h ago |
| Peptira peptidesThird-party lab tests on filelisted as THYMOSIN ALPHA-1 | 10MG | 10mg | $89.00 | $8.90/mg | 17h ago |
| aminovault.comThird-party lab tests on filelisted as Thymosin Alpha-1 10 mg | 10mg | $89.25 | $8.93/mg | 17h ago |
| elitebiogenix.comThird-party lab tests on filelisted as Thymosin Alpha-1 10mg | 10mg | $99.99 | $10.00/mg | 15h ago |
| betterbiosynthesis.comThird-party lab tests on filelisted as Thymosin Alpha-1 10mg | 10mg | $100.00 | $10.00/mg | 16h ago |
| protidehealth.comThird-party lab tests on filelisted as Thymosin Alpha-1 10mg | 10mg | $105.00 | $10.50/mg | 16h ago |
| buyironpeptides.comThird-party lab tests on filelisted as Thymosin Alpha 1 Peptide | 10mg | $109.00 | $10.90/mg | 16h ago |
| americanpeptides.usThird-party lab tests on filelisted as THYMOSIN ALPHA-1 | 10mg | $125.00 | $12.50/mg | 15h ago |
| biolongevitylabs.comThird-party lab tests on filelisted as Thymosin Alpha 1 (10mg) | 10mg | $129.97 | $13.00/mg | 17h ago |
| biotechpeptides.comThird-party lab tests on filelisted as Thymosin Alpha-1 (10mg) | 10mg | $130.00 | $13.00/mg | 17h ago |
| warrior-makers.comThird-party lab tests on filelisted as Thymosin Alpha-1 10mg | 10mg | $139.00 | $13.90/mg | 15h ago |
Out of stock10mg · 2 offers | ||||
| cosmicpeptides.comThird-party lab tests on filelisted as Thymosin Alpha-1Out of stock | 10mg | $69.99 | $7.00/mg | 15h ago |
| verifiedpeptides.comThird-party lab tests on filelisted as Thymosin Alpha-1 Peptide (10MG)Out of stock | 10mg | $80.00 | $8.00/mg | 17h ago |
Out-of-stock rows are excluded from the lowest, the median and the shop count
Read the Thymosin-Alpha 1 (A1) guide
Lab-test data, purity averages and what the evidence actually shows.