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Where to Buy Semax: Vendor Comparison, Benefits & Side Effects

A nootropic peptide studied for cognition and neuroprotection.

Published December 17, 2025310 vendors listed1 cited source
Compare 310 vendorsCompare prices — from $0.256/mgDosing calculator

Cheapest Semax prices per mg

The 5 lowest verified retail prices of 283 we track, ranked by cost per milligram.

Compare all 283 vendors →
Semax cost per milligram, cheapest retail vendors first
#VendorPrice / mgVisit vendor
1Sunrise BioResearch$0.256Visit
2Topstide$0.333Visit
3Steady Meds$0.450Visit
4Bio Bulk Peptides$0.550Visit
5Peptide Pros$0.971Visit

Prices checked — the newest verification among the vendors shown. What “checked” means. Cost per milligram, normalised for comparison; confirm on the vendor’s own site before ordering. Sold for laboratory research use only.

What is Semax?

Semax is a synthetic peptide researched for enhancing memory, focus, and neuroplasticity.

Where to Buy Semax Online

310 vendors in our directory currently list Semax — 283 online stores and 27 wholesale suppliers. Stores sell by the vial with a price you can check; wholesale suppliers quote per gram on enquiry. Featured vendors paid for their placement; ratings and trust signals are never for sale.

The top 15 online stores are compared below, ordered by our directory ranking.

Compare all Semax prices per mg →

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Mechanism of Action

It modulates BDNF expression and neurotransmitter systems involved in learning and stress response.

Clinical Research

Cited studies

  1. 1Semax, an ACTH(4-10) analogue with neuroprotective properties

Researched Benefits

Research on Semax has focused on the following areas:

  • Synthetic ACTH(4‑10) analog researched for pro‑cognitive and neuroprotective effects
  • May enhance learning, memory, and resistance to hypoxic or ischemic stress
  • Investigated for improving attention and mental performance under load

Side Effects & Safety

Adverse reactions and limitations documented for Semax include:

  • Mild agitation
  • Headache

Guides on Semax

Research summaries and buying guidance from our editorial team.

Neurological Research

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