Buy 4, get 1 free · no code needed · Same-day dispatch before 2pm ET · For research use only. Not for human consumption. · 18+

Lyra Vital
Semax — lyophilized powder in a Lyra Vital research vial on black marble
Lyophilized powder

Neuroactive

Semax

Semax (ACTH 4-10 analog)

Also known as Met-Glu-His-Phe-Pro-Gly-Pro

Semax is a synthetic analog of ACTH fragment 4-10, extended with a C-terminal Pro-Gly-Pro sequence that markedly increases stability against peptidase degradation. The design goal was retention of the neurotropic effects attributed to the ACTH fragment while eliminating its corticotropic activity — the fragment does not stimulate steroidogenesis. Published work reports rapid upregulation of BDNF and NGF expression in hippocampal tissue. As with Selank, most primary literature is Russian-language and requires translation.

Research applications

  • BDNF and NGF expression profiling in hippocampal tissue
  • Dopaminergic and serotonergic system interaction studies
  • Neuroprotection assays in ischemia models
  • Peptidase stability studies of Pro-Gly-Pro extended analogs

Storage

Store lyophilized at -20°C protected from light. Reconstituted at 2-8°C for up to 30 days.

Reconstitution

Reconstitute with bacteriostatic water down the vial wall. Swirl gently.

Bacteriostatic water, 10mL → · Work out the volume →

Published literature

Indexed from PubMed, 2026-07-19. We link to sources rather than reproducing them.

Related compounds

The certificate comes first

Every compound’s independent laboratory analysis is published before you buy, not sent on request.

Verify it without us

Each certificate carries a laboratory key. Enter a batch code and check it at the lab directly.

Ships from Orlando, FL

Orders dispatch within 1 business day of cleared payment, with tracking emailed when the parcel is handed to the carrier. Track any order, account or not.

A person answers

Write to [email protected] and a human replies — no ticket bot, no queue number.

How Semax compares

Side-by-side against the compounds researchers most often weigh it against, with price per milligram, mechanism and the published certificate for each.

Research goals that include Semax

The research areas this compound is grouped under, each with the other compounds studied alongside it and the published certificates for the group.

Semax

From $49