Semax 5mg price comparison
11 vendors currently sell Semax in a 5mg vial. Cheapest captured: $18.99 ($3.80/mg) from Eternal Peptides. Note: other vial sizes get as low as $1.35/mg — this size costs ~181% more per mg for the convenience.
captured 5h ago · first-party, default sort: $/mg
Published dosing & study context → · Reconstitution calculator →
11 listings Vendor Score measures published evidence, not product safety. Affiliate status never affects sorting.
| # | Vendor | Product | Size | Price | $/mg | Vendor Score | Trend | Code | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Eternal Peptides since May 2025 | Semax ▼ all-time low first-party · captured · earns pepmg $0 · source ↗ · 141 at the lab ↗ | 5mg | $18.99Checked within 24 hours | $3.80 | 92/100 | — | visit vendor ↗ | |
| 2 | Modern Research Peptides since Sep 2025 | Semax 5mg ▼ all-time low first-party · captured · earns pepmg $0 · source ↗ · 276 at the lab ↗ · COAs ↗ | 5mg | $21.99Checked within 24 hours | $4.40 | 96/100 | — | visit vendor ↗ | |
| 3 | Atomix Research since 2024 | Semax (5mg) ▼ all-time low first-party · captured · earns pepmg $0 · source ↗ · 5 at the lab ↗ | 5mg | $24.99Checked within 24 hours | $5.00 | 81/100 | — | visit vendor ↗ | |
| 4 | Trutide Solutions since Sep 2025 | SEMAX 5mg ▼ all-time low first-party · captured · earns pepmg $0 · source ↗ · 1 at the lab ↗ | 5mg | $24.99Checked within 24 hours | $5.00 | 81/100 | — | visit vendor ↗ | |
| 5 | MOG Labs since Oct 2025 · new | Semax 5mg first-party · captured · earns pepmg $0 · source ↗ · 78 at the lab ↗ | 5mg | $26.00Checked within 24 hours | $5.20 | 86/100 | — | visit vendor ↗ | |
| 6 | RUO.bio since Jan 2025 | Semax 5mg first-party · captured · earns pepmg $0 · source ↗ · 91 at the lab ↗ | 5mg | $26.00Checked within 24 hours | $5.20 | 89/100 | — | visit vendor ↗ | |
| 7 | Elite Miami Peptides since 2024 | Semax 5mg ▼ all-time low first-party · captured · earns pepmg $0 · source ↗ | 5mg | $31.95Checked within 24 hours | $6.39 | 80/100 | — | visit vendor ↗ | |
| 8 | Arcane Peptides since Dec 2025 · new | Semax 5mg ▼ all-time low first-party · captured · earns pepmg $0 · source ↗ · 57 at the lab ↗ | 5mg | $35.00Checked within 24 hours | $7.00 | 86/100 | — | visit vendor ↗ | |
| 9 | Nationwide Peptides since Oct 2025 · new | Semax Peptide 5 mg first-party · captured · commission · rank unaffected · source ↗ · 88 at the lab ↗ · COAs ↗ | 5mg | $37.00Checked within 24 hours | $7.40 | 94/100 | — | visit vendor ↗ | |
| 10 | LiveWell Peptides since Feb 2025 | Semax Nootropic Peptide — ACTH(4-10) Analog | Research Grade 5-mg ▼ all-time low first-party · captured · earns pepmg $0 · source ↗ · COAs ↗ | 5mg | $39.99Checked within 24 hours | $8.00 | 80/100 | — | visit vendor ↗ | |
| 11 | Penguin Peptides since Apr 2025 | Semax 5-mg ▼ all-time low first-party · captured · earns pepmg $0 · source ↗ · 47 at the lab ↗ | 5mg | $55.00Checked within 24 hours | $11.00 | 87/100 | — | visit vendor ↗ |
Other Semax sizes: 10mg (61)30mg (11) · all sizes & vendors →
All products listed are sold by third-party vendors for laboratory and research use only (RUO). Where an FDA label or a peer-reviewed study has published a dose, pepmg reports it with the source named, because that is safer than guessing. It is a report, not medical advice and not a recommendation to use anything. pepmg sells nothing and ships nothing. Listings are price-tracking data, not endorsements.