NexPept
Laboratory Research Supply
RESEARCH CATALOGUE
Mix & Match Any Peptides
Full Catalogue
Metabolic Research
Cellular Research
Secretagogue Research
Neuro Research
Research Blends
Laboratory Supplies
3+ items5%
5+ items10%
10+ items20%
ABOUT NEXPEPT
NexPept Rewards Become an Affiliate Partner Our Quality Standards About UsRESEARCH TOOLS & DOCS
Research Articles Peptide Calculator Certificates of Analysis Shipping & Delivery FAQACCOUNT
Track Your Order Account Login My Points & RewardsVerified Reviews
For Research Use Only
All products are intended for laboratory research use only. Not for human or veterinary use.
Mix & match any peptides:
3+ save 5%
5+ save 10%
10+ save 20%
View the COA Library
Tools & Support
Research Articles
99%+ Purity Verified
Research Use Only
Secure Checkout
All products are supplied strictly for laboratory research use. Not for human or veterinary use.
Third-Party Tested
Research Use Only
Batch Tracked
SEMAX 10MG / SELANK 10MG
SKU NP-SMXSEL-20
$80.00
CAD
Order within
Mix & Match All Peptides
Any products, any strengths — the discount counts your whole cart
3 vials5% off
5 vials10% off
10 vials20% off
Same-day dispatch before 2 PM ET
Orders after the cutoff ship the next business day
Free shipping over $250
Discreet, tracked Canada Post on every order
Ships from Ontario
Typically 1–2 business days across Canada
Third-party tested, batch-tracked
HPLC and mass-spec verified, COA for every lot
Secure encrypted checkout
Crypto 10% off
e-Transfer
Credit/Debit
Overview
Properties
Research
Lab Results
FAQ
Semax 10mg / Selank 10mg overview
Semax 10mg / Selank 10mg (blend — no single CAS number) combines equal 10mg portions of Semax, a synthetic heptapeptide derived from the ACTH(4-7) sequence, and Selank, a synthetic tuftsin analogue, in one lyophilized vial. NexPept supplies it as a lyophilized research reference standard for in vitro neuro-signalling and receptor-pathway research. Not for use in any living organism.
Every lot is independently tested by a third-party analytical laboratory before it is listed. The Certificate of Analysis reports HPLC purity, mass spectrometry identity confirmation, and net-content verification, and stays published in our COA library after the batch sells out.
For background on the two compounds — their different parent molecules, the shared Pro-Gly-Pro tail, and when a blend is or is not the right choice for a controlled study — see our Semax vs Selank comparison.
✓
99%+ HPLC purity on the current lot✓
Mass spectrometry identity confirmed✓
Batch number printed on every vial✓
Certificate published, not available on requestStudied in vitro for
Batch verification
Current lot
Third-party lab verified
HPLC + mass spectrometry
BatchNP-SEMAXSEL-02
TestedAugust 6, 2026
Purity99%+
Properties
| Composition | Semax — 10mg |
|---|---|
| Composition | Selank — 10mg |
| Compound Class | Peptide blend — dual-component heptapeptide neuro-research blend |
| Physical Form | Lyophilized powder |
| Appearance | White to off-white lyophilized solid |
| Net Quantity | 20mg total / vial (10mg + 10mg) |
| Analytical Method | HPLC + Mass Spectrometry |
Research context
This dual-heptapeptide blend is used as a combined tool set in preclinical in vitro settings. Published work on its components has examined MC4R melanocortin receptor pathway models, GABA-A modulation studies, and the shared Pro-Gly-Pro bioactive fragment associated with BDNF-pathway research, letting researchers probe overlapping neuro-signalling mechanisms from a single vial.
NexPept supplies Semax and Selank pre-combined at a fixed 10mg/10mg ratio rather than as a custom mix, so every vial reflects the same proportion from lot to lot. Researchers who need to vary either peptide independently typically use the single-compound vials instead.
This compound has not been authorized by Health Canada for any therapeutic, clinical, or human use.
Further reading
Semax vs Selank — side-by-side sequences, parent molecules and when a blend suits the study design
Semax research overview — the ACTH fragment, the Pro-Gly-Pro tail and the research record
Selank research overview — tuftsin parentage and what the literature reports
Peptide blends explained — how multi-compound research formulations are put together
What are research peptides? — how research-grade material differs from a drug or a supplement
Buy peptides in Canada — sourcing, documentation and what to check before ordering
PubMed — Semax / Selank — peer-reviewed scientific literature
NexPept COA Library — published certificates for every batch we have sold
Lab results
Certificates for the lots we have shipped. The batch number on your vial matches one of these.
Research Use Only. All products are intended solely for laboratory research use and are not for human or veterinary use. By purchasing, the buyer agrees to use these products in compliance with all applicable laws.
Frequently asked questions
What testing does each batch go through?
Identity and purity are confirmed by high-performance liquid chromatography and mass spectrometry before a lot is listed. The current lot, NP-SEMAXSEL-02, tested at 99%+ on August 6, 2026. If a lot has not been tested, it does not go on sale.
What class of compound is this blend?
A two-peptide research blend combining Semax, a synthetic heptapeptide derived from the ACTH(4-7) melanocortin sequence, with Selank, a synthetic tuftsin analogue. Both share an identical Pro-Gly-Pro C-terminal extension. It is supplied as a lyophilized powder and handled as a peptide reference standard, not as a formulation.
How does this blend differ from the single-compound Semax or Selank vials?
The blend vial contains 10mg of each peptide pre-combined at a fixed ratio, rather than 10mg of one compound alone. Researchers running comparative work on the two sequences independently usually take the single-compound vials — Semax 10mg and Selank 10mg — so each can be varied separately; this blend is a convenience format at a fixed 1:1 ratio.
What physical form does it arrive in?
A white to off-white lyophilized (freeze-dried) solid, sealed in a single vial. Net quantity is 20mg total across both peptides. No preparation, reconstitution or handling instructions are supplied; those are determined by qualified personnel under your own institutional protocols.
All products are intended for laboratory research use only. Not for human or veterinary use.
Product Reviews
Customer feedback
Read feedback from customers who have purchased this product, or be the first to share your experience.
Frequently Asked Questions
Everything you need to know before ordering
Product Quality Summary is available on every product page. Independent third-party Certificates of Analysis are available upon request for select batches and may be verified directly with the testing laboratory.
Please note that all sales are final. Due to the nature of our products and inventory, we are unable to accept returns. Product quality is independently assessed via 3rd party laboratory testing to ensure quality, and all purchases made via this website are done with the implied consent that you acknowledge and accept the empirical testing provided on each product page. In the event of dissatisfaction or quality concern, please consult with us via email so that we can try to assist.
We ship to addresses within Canada only. All orders are shipped domestically via Xpress Post with Canada Post to ensure safe, discreet delivery.
Most orders ship the same business day. Orders within the Greater Toronto Area (GTA) typically arrive within 1–2 business days, while more rural or remote areas can expect 3–5 business days. FlexDelivery and PO Boxes are supported. Please note these are average delivery times — delays may occasionally occur due to courier issues or remote locations.
Every peptide product sold on our site is lab-tested before it's listed. If a product hasn't been tested, we don't sell it.
Unless otherwise noted on the product page, all NexPept research compounds are supplied as lyophilized (freeze-dried) powder for laboratory research use. Physical form and net quantity are listed individually on each product page.