SEMAX is currently in stock at 68 shops, all of which have third-party lab tests on file. Prices range from $17.50 to $2,100.00 per vial, with a median of $4.00 per mg. Vial sizes range from 5mg to 1000mg. Last updated 11 September 2026.
198 shops are known to sell SEMAX — 76 with a live listing, 122 evidenced by a lab test in the last year. 90 listings are identified, of which 81 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 vials5–7mg · 9 offersfrom $3.80/mg | ||||
| eternalpeptides.comThird-party lab tests on file | 5mg | $18.99 | $3.80/mg | 19h ago |
| goalphalabs.comThird-party lab tests on file | 5mg | $20.14 | $4.03/mg | 19h ago |
| ruo.bioThird-party lab tests on file | 5mg | $26.00 | $5.20/mg | 19h ago |
| peptideminds.comThird-party lab tests on file | 7mg | $45.00 | $6.43/mg | 17h ago |
| arcanepeptides.comThird-party lab tests on file | 5mg | $35.00 | $7.00/mg | 19h ago |
| researchreadypeptides.comThird-party lab tests on file | 5mg | $42.99 | $8.60/mg | 19h ago |
| aminoquestlabs.comThird-party lab tests on file | 5mg | $45.00 | $9.00/mg | 18h ago |
| PrimeLab PeptidesThird-party lab tests on file | 5mg | $70.00 | $14.00/mg | 19h ago |
| elitebiogenix.comThird-party lab tests on file | 5mg | $89.99 | $18.00/mg | 18h ago |
Larger vials10–1000mg · 66 offersfrom $1.75/mg | ||||
| bulkpeptidesupplyThird-party lab tests on file | 10mg | $17.50 | $1.75/mg | 19h ago |
| libertypeptides.comThird-party lab tests on file | 30mg | $56.00 | $1.87/mg | 19h ago |
| bulkglp.comThird-party lab tests on file | 1000mg | $2,100.00 | $2.10/mg | 18h ago |
| biotechpeptides.comThird-party lab tests on file | 25mg | $53.00 | $2.12/mg | 19h ago |
| nulifepeptides.comThird-party lab tests on file | 30mg | $70.00 | $2.33/mg | 17h ago |
| nelapeptides.netThird-party lab tests on fileClaimed | 10mg | $24.00 | $2.40/mg | 19h ago |
| evolvebiopep.comThird-party lab tests on file | 10mg | $24.99 | $2.50/mg | 19h ago |
| aminousa.comThird-party lab tests on file | 30mg | $75.00 | $2.50/mg | 19h ago |
| corepeptides.comThird-party lab tests on file | 25mg | $63.00 | $2.52/mg | 19h ago |
| retaonelabs.comThird-party lab tests on file | 10mg | $26.00 | $2.60/mg | 19h ago |
| orbitrexpeptide.isThird-party lab tests on file | 30mg | $79.99 | $2.67/mg | 19h ago |
| cosmicpeptides.comThird-party lab tests on file | 10mg | $28.99 | $2.90/mg | 18h ago |
| peptideruo.comThird-party lab tests on file | 10mg | $29.00 | $2.90/mg | 17h ago |
| goalphalabs.comThird-party lab tests on file | 10mg | $29.24 | $2.92/mg | 19h ago |
| midwestpeptide.comThird-party lab tests on fileClaimed | 10mg | $29.99 | $3.00/mg | 18h ago |
| eternalpeptides.comThird-party lab tests on file | 10mg | $29.99 | $3.00/mg | 19h ago |
| orbitrexpeptide.isThird-party lab tests on file | 10mg | $29.99 | $3.00/mg | 19h ago |
| mypurepeptide.comThird-party lab tests on file | 10mg | $30.00 | $3.00/mg | 19h ago |
| atomiklabz.comThird-party lab tests on file | 30mg | $90.00 | $3.00/mg | 19h ago |
| myaminolab peptidesThird-party lab tests on file | 10mg | $31.00 | $3.10/mg | 17h ago |
| pureuspeptide.com/Third-party lab tests on file | 10mg | $31.50 | $3.15/mg | 17h ago |
| puratekpeptides.comThird-party lab tests on file | 10mg | $32.95 | $3.29/mg | 17h ago |
| thrivepeptides.usThird-party lab tests on file | 12mg | $39.99 | $3.33/mg | 19h ago |
| prosperitypeptides.comThird-party lab tests on file | 12mg | $40.00 | $3.33/mg | 6 days ago |
| silverstonelabsco peptidesThird-party lab tests on file | 10mg | $34.00 | $3.40/mg | 17h ago |
| Zen AminosThird-party lab tests on fileClaimed | 10mg | $34.95 | $3.50/mg | 18h ago |
| researchchemhq.coThird-party lab tests on file | 10mg | $34.99 | $3.50/mg | 18h ago |
| novapeptidesupply.comThird-party lab tests on file | 10mg | $34.99 | $3.50/mg | 19h ago |
| PurgoLabs peptidesThird-party lab tests on file | 10mg | $34.99 | $3.50/mg | 17h ago |
| peptidecrafters.comThird-party lab tests on file | 10mg | $35.00 | $3.50/mg | 19h ago |
| felixchem.isThird-party lab tests on file | 10mg | $35.00 | $3.50/mg | 19h ago |
| ramppeptides.comThird-party lab tests on file | 10mg | $35.00 | $3.50/mg | 17h ago |
| optimasupply.isThird-party lab tests on fileClaimed | 10mg | $35.00 | $3.50/mg | 19h ago |
| atomiklabz.comThird-party lab tests on file | 10mg | $35.00 | $3.50/mg | 19h ago |
| doublerlabs.isThird-party lab tests on file | 10mg | $35.99 | $3.60/mg | 18h ago |
| nurevpeptides.comThird-party lab tests on file | 10mg | $39.99 | $4.00/mg | 19h ago |
| onedaycompounds.comThird-party lab tests on file | 10mg | $39.99 | $4.00/mg | 18h ago |
| globalaminos.com peptidesThird-party lab tests on file | 10mg | $39.99 | $4.00/mg | 18h ago |
| Peptide PlugsThird-party lab tests on file | 10mg | $40.00 | $4.00/mg | 19h ago |
| uspurepeptides.comThird-party lab tests on file | 10mg | $40.00 | $4.00/mg | 17h ago |
| biopeptitech.comThird-party lab tests on file | 11mg | $45.00 | $4.09/mg | 18h ago |
| bleaugenics.comThird-party lab tests on file | 10mg | $42.00 | $4.20/mg | 19h ago |
| neurolabsresearch.comThird-party lab tests on file | 10mg | $42.00 | $4.20/mg | 19h ago |
| myarea15labs.comThird-party lab tests on file | 10mg | $44.99 | $4.50/mg | 18h ago |
| plumlabsresearch peptidesThird-party lab tests on file | 10mg | $45.00 | $4.50/mg | 17h ago |
| FullScale PeptidesThird-party lab tests on file | 10mg | $45.00 | $4.50/mg | 17h ago |
| myoasislabs peptidesThird-party lab tests on file | 10mg | $45.00 | $4.50/mg | 17h ago |
| gentlemanpeptides.comThird-party lab tests on file | 10mg | $45.00 | $4.50/mg | 19h ago |
| nurapeptide.comThird-party lab tests on file | 10mg | $45.00 | $4.50/mg | 17h ago |
| aiopeptides.comThird-party lab tests on file | 10mg | $45.90 | $4.59/mg | 19h ago |
| ascensionpeptides.comThird-party lab tests on file | 10mg | $47.50 | $4.75/mg | 18h ago |
| happypeptides.comThird-party lab tests on fileClaimed | 10mg | $48.00 | $4.80/mg | 19h ago |
| hyteresearchdivision peptidesThird-party lab tests on file | 10mg | $49.99 | $5.00/mg | 17h ago |
| Rescue Research USA PeptidesThird-party lab tests on file | 10mg | $49.99 | $5.00/mg | 18h ago |
| purapeptides.comThird-party lab tests on file | 10mg | $50.00 | $5.00/mg | 19h ago |
| nulifepeptides.comThird-party lab tests on file | 10mg | $50.00 | $5.00/mg | 17h ago |
| certified-pep.comThird-party lab tests on file | 10mg | $54.00 | $5.40/mg | 19h ago |
| nupeps.comThird-party lab tests on file | 10mg | $54.00 | $5.40/mg | 19h ago |
| bulkglp.comThird-party lab tests on file | 10mg | $55.00 | $5.50/mg | 18h ago |
| americanpeptides.usThird-party lab tests on file | 10mg | $65.00 | $6.50/mg | 18h ago |
| aminoquestlabs.comThird-party lab tests on file | 10mg | $65.00 | $6.50/mg | 18h ago |
| profoundaminos.comThird-party lab tests on file | 10mg | $65.00 | $6.50/mg | 19h ago |
| aminovault.comThird-party lab tests on file | 10mg | $74.00 | $7.40/mg | 19h ago |
| curo.youThird-party lab tests on fileClaimed | 10mg | $74.00 | $7.40/mg | 18h ago |
| betterbiosynthesis.comThird-party lab tests on file | 10mg | $79.00 | $7.90/mg | 18h ago |
| buyironpeptides.comThird-party lab tests on file | 10mg | $79.00 | $7.90/mg | 18h ago |
Out of stock5–10mg · 3 offers | ||||
| simplepeptide.comThird-party lab tests on fileOut of stock | 10mg | $55.00 | $5.50/mg | 19h ago |
| protidehealth.comThird-party lab tests on fileOut of stock | 10mg | $60.00 | $6.00/mg | 18h ago |
| trulabpeptides.comThird-party lab tests on fileOut of stock | 5mg | $32.00 | $6.40/mg | 18h ago |
Out-of-stock rows are excluded from the lowest, the median and the shop count
Read the SEMAX guide
Lab-test data, purity averages and what the evidence actually shows.