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Amelia S.Edinburgh, UK · 25 Jun 2026
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Nasal Sprays
Nasal Sprays
In stockSemax Nasal Spray
50 mg · ≥99% purity
4.9
£39.99£49.99GBPSave 20%
£39.99 per vial · Tax calculated at checkout · Free tracked UK & EU shipping over £50
Bundle & saveVolume discount applied automatically
1
We accept
≥99% purity
3rd-party HPLC
CoA per batch
Fast UK shipping
Quality guarantee
Every batch is independently HPLC assayed. Certificate of Analysis available on request.
Every UK order includes — free
- ✓Batch certificate of analysis (HPLC)
- ✓Discreet, unbranded packaging
- ✓Tracked delivery — free on orders over £50
Full refund
if a batch is off-spec
Free reship
if lost or damaged in transit
Same-day dispatch
Mon–Fri, order before 12:00 UK
Research use only
for laboratory work
Analytical data
Specifications, documented.
Identity data cross-checked against PubChem; purity taken from the batch certificate of analysis.
CompoundSemax
Also known asACTH(4-7)-Pro-Gly-Pro
Molecular formulaC₃₇H₅₁N₉O₁₀S
Molecular weight813.93 g/mol
CAS number80714-61-0
PubChem CID9811102
SequenceMet-Glu-His-Phe-Pro-Gly-Pro
FormNasal spray solution, 15 ml bottle
Storage2–8 °C, protected from light
About this compound
Semax
ACTH(4-10) heptapeptide analogue
Half-life
≈ minutes (peptidase-dependent)
Semax is a synthetic heptapeptide built on the ACTH(4-10) fragment and capped with a C-terminal Pro-Gly-Pro to resist enzymatic breakdown. It is a well-characterised reference compound in nootropic-, neuroprotection- and BDNF-research models, frequently studied for melanocortin- and monoaminergic-pathway signalling.
Semax is studied in vitro for up-regulation of BDNF/NGF expression and its effects on melanocortin- and monoaminergic-signalling pathways.
Research areas
Nootropic & cognition researchNeuroprotection modelsBDNF / NGF signallingMelanocortin-pathway studies
Research literature
Research notice: supplied strictly as laboratory research material for in-vitro use. Not for human or veterinary use, and not a medicine, food or cosmetic. This page gives identification and quality information only — no usage instructions or medical advice.
Browse this research area
Semax Nasal Spray is a research-grade peptide compound, supplied by MyPeptides for laboratory research use only.
Semax is a synthetic heptapeptide (Met-Glu-His-Phe-Pro-Gly-Pro) built on the ACTH(4-10) fragment and capped with Pro-Gly-Pro to resist enzymatic breakdown. It is a reference compound in neuroprotection and BDNF / NGF-expression research.
Supplied as 50 mg of Semax in a ready-made 15 ml spray solution. Selank, the tuftsin-derived heptapeptide often studied alongside it, is available in the same format.
Keep refrigerated at 2–8 °C, tightly closed and protected from light. Ordered before 12:00 UK time, it ships the same working day. Laboratory research use only.
Semax Nasal Spray — frequently asked questions
Straight answers on purity, handling, dispatch and research use.
What is Semax Nasal Spray?
Semax Nasal Spray is a research-grade peptide compound, supplied by MyPeptides as a lyophilised research vial for laboratory research use only.
What is Semax Nasal Spray used for in research?
In cited literature, Semax Nasal Spray is studied in nasal sprays research. It is not a medicine and is not intended for human or veterinary use.
What purity is MyPeptides Semax Nasal Spray?
Every batch is third-party HPLC assayed at ≥99% purity. A signed certificate of analysis is available on request after checkout.
How is Semax Nasal Spray reconstituted and stored?
Ships lyophilised in a sealed borosilicate vial. Store at −20 °C; reconstitute with bacteriostatic or sterile water immediately before in vitro use.
Do you ship Semax Nasal Spray to the UK and EU?
Yes — tracked Royal Mail and DPD dispatch across the UK and EU, with free shipping on orders over £50. Weekday orders placed before 12:00 UK time ship the same day.
Related research
Semax Nasal Spray reviews
Verified feedback from qualified researchers across the UK & EU.
4.8(6 reviews)
Swipe
Verified
Professional service end to end
Site was easy to use, checkout was fast, and the product arrived exactly when they said it would. Straightforward, no drama, high quality.
Amelia S.Edinburgh, UK · 25 Jun 2026
Verified
Solid product, will reorder
Everything about this feels professional - from the site to the packaging to the paperwork. Purity assay matches what is on the label. Will keep ordering.
Lena P.Amsterdam, NL · 27 May 2026
Verified
Exactly as described
Shipping to mainland EU took 3 working days, tracked the whole way. Vials arrived intact, labels crisp, seals unbroken. Reordering next month.
Anton V.Vienna, AT · 18 Jun 2026
Verified
Consistent batch to batch
Ordered a bundle to save on shipping - all vials arrived in one insulated pack, labels identical batch, CoA covers the lot. Great value.
Ethan W.Dublin, IE · 6 Apr 2026
Fast UK shipping
Been using peptides for research for years and MyPeptides is now my go-to. Consistent quality, quick turnaround, real documentation.
Marcus T.Berlin, DE · 31 May 2026
Verified
Vials in perfect condition
Documentation is what sold me. Independent CoA per batch, clean HPLC traces. Reconstitution behaved exactly as expected. Solid supplier for research use.
Nikos A.Athens, GR · 9 Jun 2026
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