§ Same category · Cognitive peptides
Selank vs Semax
Side-by-side price comparison across every tracked vendor. Updated every 4–6 hours.
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Selank
29
vendors tracked
from $2.50/mg
Semax
26
vendors tracked
from $2.50/mg
◎ Cheapest $/mg:Selank at $2.50/mg
Selank
Anxiolytic neuropeptide
Operational
$19.43
$3.89/mg
In stock◎ Best $/mg
Operational
$24.99
$5.00/mg
In stock▲ 28.6% vs best
Operational
$25.20
$5.04/mg
In stock▲ 29.7% vs best
B-
Watch$39.99
$8.00/mg
In stock▲ 105.8% vs best
| Vendor | Grade | Risk | Price | $/mg | Trend | Stock | |
|---|---|---|---|---|---|---|---|
| Research Peptides Europe EU | A | Operational | $19.43 ◎ Best $/mg | $3.89 | In stock | Buy with code → | |
| Pure Lab Peptides US | B- | Operational | $24.99 ▲ 28.6% | $5.00 | In stock | Visit → | |
| ResearchPeptide UK UK | B- | Operational | $25.20 ▲ 29.7% | $5.04 | In stock | Visit → | |
| Modified Aminos US | B- | Watch | $39.99 ▲ 105.8% | $8.00 | In stock | Visit → |
Sort:
Last crawl 2026-06-18Sort:
2026-06-18Semax
Nootropic ACTH fragment
Operational
$19.43
$3.89/mg
In stock◎ Best $/mg
Operational
$19.99
$4.00/mg
In stock▲ 2.9% vs best
B-
Watch$39.99
$8.00/mg
In stock▲ 105.8% vs best
| Vendor | Grade | Risk | Price | $/mg | Trend | Stock | |
|---|---|---|---|---|---|---|---|
| Research Peptides Europe EU | A | Operational | $19.43 ◎ Best $/mg | $3.89 | In stock | Buy with code → | |
| Pure Lab Peptides US | B- | Operational | $19.99 ▲ 2.9% | $4.00 | In stock | Visit → | |
| Modified Aminos US | B- | Watch | $39.99 ▲ 105.8% | $8.00 | In stock | Visit → |
Sort:
Last crawl 2026-06-18Sort:
2026-06-18About Selank
A synthetic heptapeptide derived from tuftsin, studied in Russian neuropharmacology research for anxiolytic and nootropic effects.
About Semax
A synthetic heptapeptide based on an ACTH(4-10) fragment. Studied in Russian neurology for neuroprotection and cognitive enhancement.