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Semax Peptide

Semax 5mg research peptide vial, ACTH 4-10 analog, Pro Peptide Canada
Brain + Mood
A Russian-developed nootropic peptide studied for memory and focus, linked to bumping up the brain's own BDNF.
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SKU: PP-SEMAX-5MG
Tags ≥99% purity ACTH 4-10 BDNF brain peptide brain research COA verified cognitive research focus research lyophilized melanocortin N-acetyl semax neuropeptide neuroprotection NGF nootropic peptide peptide canada research peptide Russian peptide Semax synthetic peptide

Made in Canada

Domestic facility, no border delays

We guide you

Peptide Planner with every order

Cold-pack shipping

Free on every order

Same-day dispatch

Order by 2pm PT

Crush-proof box

Arrives intact, every time

Swab included

Sterile-wipe before each draw

What Semax is

Focus peptide, plain

A short brain-signaling peptide with a forty-year head start in Russian labs.

Decades of study, most of it never translated.

Semax is a focus peptide the Russians cooked up decades ago, then basically hid from the rest of the world for forty years.

Your brain runs on chemical messengers. Some of them help your brain cells grow, stay sharp, and talk to each other faster. It is a tiny lab-made peptide (just a short string of the same building blocks your body already uses) that researchers study for how it nudges one of those grow-and-stay-sharp signals.

It sits on the brain and mood shelf, a couple spots over from Selank, the calmer peptide from the same Russian research world.

What it actually does

Your brain makes a protein called BDNF. The mechanism everybody is poking at: whether this peptide nudges that signal upward. More plant food, theoretically.

It is built from a piece of ACTH (a hormone your body already makes) with the stress-hormone part snipped off. So what is left gets studied for the brain-signaling side, minus the part that revs up cortisol. That little edit is the whole reason it exists.

The research so far

In the lab, Semax shows up in work on neuroprotection, attention, and how brain cells hold up under stress. Most of that happens in cell cultures and animal models, not people. You can read the full chemical profile on its PubChem entry.

Featured reading

A short peptide studied for the BDNF signal

The research interest clusters around how the compound interacts with BDNF and how it behaves in neural models.

Neuroscience research
Neuroprotection

How brain cells hold up under stress.

Attention and focus

The brain-signaling angle researchers keep returning to.

Research only

Pro Peptide stocks it for research. The studies write the conclusions, not us.

None of that is a promise about your brain. It is just where the research points.

Semax specs

Compound specification SKU PP-SEMAX-5MG
Also known as
Semax (ACTH 4-10 analog)
What it is
Synthetic brain peptide
Molecular formula
C37H51N9O10S
Molecular weight
813.9 g/mol
PubChem CID
9811102
Purity
≥99% HPLC
Format
Freeze-dried powder
Storage
Keep it cold and out of the light

The backstory

Here is the fun part. The compound came out of Soviet research, and most of the paper trail is sitting in Russian journals nobody ever translated. The data is real, and it is long.

  1. Soviet origins

    Developed decades ago in Russian labs studying brain-signaling peptides.

  2. Decades of study

    A long research history, most of it published in Russian and never translated.

  3. Western interest

    Researchers outside Russia started digging in, Google Translate in hand.

Buying Semax in Canada

The short version

Read the COA before you buy, not after

A number on a label means nothing without the paper to back it. Pro Peptide puts the certificate of analysis right on this page.

Ships same day from Canada

Order Semax and it is out the door today, packed cold. Domestic shipping only.

99% HPLC purity

Every batch ships with its COA, matched to that vial.

Research use only

Sold for laboratory research. Not for human consumption.

Pairs with the rest of the shelf

Selank

The calmer peptide from the same Russian research world.

View compound →

MOTS-c

A longevity-research peptide that works the cellular-energy angle.

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NAD+

The cellular-energy molecule researchers pair with longevity work.

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Order it

Semax, lyophilized, COA on the page

For research use only. A little Russian brain peptide with a big mysterious paper trail.

Add Semax to cart Read the COA first

Not for human consumption. Not approved by Health Canada or any other regulatory body. This product is intended for in vitro and laboratory research applications only.

Certificate of Analysis

HPLC verified. The COA ships with every batch.

99.4%
HPLC Purity
✓ COA Verified

Batch PP-SEMAX-5MG-A

Tested
April 2026
Method
HPLC + Mass Spectrometry
Vial size
10mg lyophilized
Stored at
2 to 8°C, dark

Test results

HPLC verified
HPLC Purity99.4%✓ Pass
Mass spec confirmationConfirmed✓ Pass
Net peptide contentWithin spec✓ Pass
Endotoxin screenBelow detection✓ Pass
Visual inspectionUniform white powder✓ Pass
Every order ships with the COA matching that specific batch. If your source does not provide a COA, that is not a source. That is a mystery box.

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Stuff people ask us

If your question's not here, email us. Real human answers.

What is Semax?
Semax is a synthetic peptide based on a fragment of the ACTH hormone, studied in neuroscience research for how it interacts with brain-signaling proteins like BDNF. It is sold as a lyophilized powder for research use only.
What is the molecular weight of Semax?
Semax has a molecular weight of 813.9 g/mol and the molecular formula C37H51N9O10S (PubChem CID 9811102).
How is the purity of Semax verified?
Every batch is tested by HPLC to at least 99% purity, and the Certificate of Analysis for that batch ships with the order and is shown on the product page.
How should Semax be stored?
Store the lyophilized powder cold and protected from light. Keep it sealed until use to maintain stability.
Does Semax come with a COA?
Yes. Every batch ships with its Certificate of Analysis, shown right on the product page, so you can confirm purity before you buy.
What does "research use only" mean?
It means this product is intended strictly for laboratory research. It is not for human or animal consumption, and nothing on this page is a medical or therapeutic claim.

Not for human consumption. Not approved by Health Canada. For in vitro research only.

Related Research Compounds