from £24.99
Third-party tested
Semax
A synthetic peptide built from a short fragment of ACTH. Developed in Russia and used in cognition and neuroprotection research.
Strength: 10mg
In stock
£24.99
1
per vial · £2.50 per mg
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- •10mg strength, supplied as lyophilised powder
- •£2.50 per mg, down to £17.49 a vial on 5
- •99.42% purity by HPLC-UV, lot SMX10-2607
- •Same-day dispatch before 6pm, Royal Mail Tracked 24
Sealed.Cold.Tested.
Lyophilised powder. Store at -20°C, protect from light.
Kept cold
Product information
Semax is a synthetic peptide built from a fragment of ACTH (adrenocorticotropic hormone), with three extra amino acids added. It is used in nootropic and neuroprotection research. Supplied lyophilised.
- Purity
- 99.42% by HPLC-UV
- Specification
- ≥99% minimum
- Form
- Lyophilised powder
- Strength
- 10mg
- Molecular weight
- 813.94 Da
- Price per mg
- £2.50 per mg
- Storage
- -20°C, protect from light
- Lot
- SMX10-2607
- Analysed
- 6 Aug 2026
- PubChem CID
- 9811102
Questions & answers
What is Semax peptide?
Semax is a synthetic peptide based on a fragment of ACTH, used in nootropic and neuroprotection research. Ours comes freeze-dried in 10mg vials, tested to ≥99% by HPLC.
What is Semax studied for?
Published work on Semax covers attention, memory and neuroprotection. Most of it is preclinical.
How fast will my order arrive?
Order before 6pm and it ships the same day by Royal Mail Tracked 24. Most UK orders arrive the next working day.
How do I track my order?
We email you a Royal Mail tracking link as soon as your order ships.
What purity is Semax?
Semax is tested to ≥99% purity by HPLC and supplied as lyophilised powder. You can read the lab report at the top of this page.
How should it be stored?
Store at -20°c, protect from light. Keep it sealed until you mix it. Once mixed, keep it in the fridge.
Product detail
What you get
In the vial
Semax 10mg, supplied as lyophilised powder and sealed. Tested to ≥99% purity by HPLC.
In the box
Your vials, packed cold and sealed, sent by Royal Mail Tracked 24. Delivery details.
With the order
A tracking link by email, and the batch lab report on this page. Returns policy.
About Semax peptide
Semax is a synthetic peptide made from a short fragment of ACTH. It was developed in Russia and is now used in cognition and neuroprotection research. We sell it in 10mg vials, tested to ≥99% purity.
01
ACTH fragment
Built from ACTH(4-7) with three extra amino acids added.
02
10mg vials
Freeze-dried, for lab reconstitution.
03
Often paired with Selank
Selank is in our Mood & Focus range too.
Storing & handling
How to keep Semax stable, from delivery to first use.
- 1
Storage
Store at -20°c, protect from light. Keep the vial sealed until you are ready to mix it.
- 2
Reconstitution
Supplied as lyophilised powder. Mix with bacteriostatic water before use.
Shop bacteriostatic water - 3
Purity
Each batch is tested to ≥99% purity by HPLC. The report is at the top of this page.
- 4
After mixing
Once mixed, keep it in the fridge at 2-8°C and away from light.
Read more about Semax
- Semax and BDNF: What the Nootropic Studies Measured and How Strong They AreWhat the rat BDNF experiments and the human EEG and attention studies on Semax measured, with the actual numbers, and an honest grading of the evidence.24 October 2026 · 8 min read
- Semax History: From ACTH Fragment in Moscow to Unlicensed in the UKHow Semax was designed from ACTH(4-7) in Moscow, what the Russian stroke and optic nerve trials reported, and why it holds no licence in the UK, EU or US.24 October 2026 · 8 min read
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Semax 10mg
£24.99