Selank 10mg
$80.00
- Free US shipping over $150
- HPLC-tested at 99%+ purity
- US-based fulfillment
Overview
Description
A calming peptide researched for emotional balance and stress resilience without sedation. Often chosen when you want a smoother nervous system response while staying clear and functional.
Selank is commonly explored for anxiety-related signaling and mental composure, making it a strong fit for daily performance and high-stress lifestyles.
Scientific Overview
Selank is a synthetic peptide based on a naturally occurring immune-related peptide fragment. It has been studied for anxiolytic and immunomodulatory properties, including effects on neurotransmitter balance and stress-response signaling. Research interest includes cognitive steadiness, emotional regulation pathways, and immune signaling interactions.
Product Details
- Compound: Selank
- Vial Size: 10mg
- Purity: ≥99%
- Form: Lyophilized powder
This product is intended strictly for laboratory research purposes only. It is not approved for human or veterinary use by the FDA or any other regulatory agency. Store in a cool, dry environment prior to reconstitution and handle using appropriate laboratory and aseptic techniques.
Frequently asked questions
Yes. Every batch of Selank 10mg undergoes independent third-party testing using High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS). The Certificate of Analysis is published and accessible from the product page.
Selank 10mg sold by MHS Longevity is verified to 99%+ purity, with the result documented in each batch's Certificate of Analysis. Anything below that threshold is rejected before release.
The Certificate of Analysis for Selank 10mg is available directly from the product page and on our Third-Party Test Results page. Each COA includes the batch identifier, test date, testing method, and verified purity percentage.
Selank 10mg ships from our US-based facility with standard or expedited options. Orders over $150 qualify for free standard US shipping. All orders are packaged discreetly with documented handling protocols.
No. Selank 10mg is supplied strictly for laboratory research purposes only. It is not approved by the FDA for human or veterinary use, and it is not intended to diagnose, treat, cure, or prevent any disease.
MHS Longevity is a veteran-owned operation focused on pharmaceutical-grade research compounds. We source from vetted manufacturers, batch-test independently with HPLC and Mass Spectrometry, and publish every Certificate of Analysis. Pricing is transparent and the testing process is documented end-to-end.
Selank has a molecular weight of approximately 751.9 g/mol, with the empirical formula C33H57N11O9. This is documented on each batch's Certificate of Analysis alongside the Mass Spectrometry result.
Selank and Semax are both synthetic heptapeptides originally developed for neuromodulation research in Russia, but they descend from different parent molecules — Selank from tuftsin, Semax from ACTH(4-10). Their amino-acid sequences are entirely different and the research literature on each describes distinct pathways. We stock both as separately tested compounds.
Selank is sent to an independent third-party laboratory for HPLC and Mass Spectrometry analysis before each batch is released. The lab's identifier and test date are published on the Certificate of Analysis for that batch.
It means the HPLC chromatogram shows that 99% or more of the total peak area corresponds to Selank itself, leaving less than 1% as residual synthesis byproducts, truncated sequences, or degradation products. This is the threshold for pharmaceutical-grade research standards.
Research & buying
The evidence behind Selank 10mg and the questions to ask any vendor before you order.
Research details — Selank 10mg
Selank is a synthetic heptapeptide originally designed as a stabilized analogue of the endogenous tetrapeptide tuftsin. It was developed at the Institute of Molecular Genetics of the Russian Academy of Sciences in the late 1990s as a research compound for studying neuromodulation and stress-response pathways. This guide covers what Selank is, the research context that surrounds it, and — most importantly — how to verify that the Selank you receive matches what the label says.
What is Selank?
Selank is the research-name designation for a synthetic peptide with the sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro. Structurally it derives from tuftsin (Thr-Lys-Pro-Arg) with an added tripeptide tail (Pro-Gly-Pro) intended to improve in-vivo stability. The molecule is supplied as a lyophilized white-to-off-white powder for laboratory reconstitution.
Selank is supplied strictly for laboratory and research use. It is not approved by the FDA or any other regulatory body for human or veterinary use. Nothing on this page constitutes guidance for human administration.
Research context
Selank has been studied in the academic literature primarily in the context of neuromodulation. Published work has examined its interactions with monoaminergic systems and GABAergic signaling in rodent models, and changes in BDNF expression have been reported in some in-vivo studies. As with any research peptide, published findings are subject to reproducibility considerations and should be evaluated against current literature.
How Selank quality is verified
Every batch of MHS Longevity Selank is submitted to an independent third-party laboratory for analysis before it is released. Two methods are used together because they answer different questions:
- High-Performance Liquid Chromatography (HPLC) separates components of the sample by chemistry, producing a chromatogram. The area under the peak that corresponds to Selank, expressed as a percentage of total peak area, is the purity result. Anything below 99% is rejected.
- Mass Spectrometry (MS) measures the mass-to-charge ratio of ionized fragments to confirm the molecule is, in fact, Selank. HPLC tells you how clean the sample is; MS tells you what the sample is. Both are required.
What a Selank Certificate of Analysis shows
Each published certificate carries six things you should be able to read at a glance:
- Compound name and structural designation. Selank, with its full sequence (Thr-Lys-Pro-Arg-Pro-Gly-Pro) and molecular formula.
- Batch identifier. The unique ID that links the certificate to the specific vial shipped.
- Test date. When the analysis was performed. Peptides degrade; an old test date on a recently-shipped batch is a yellow flag.
- Method. The instrumentation used — HPLC, MS, or both — with column and mobile-phase notes where relevant.
- Verified purity %. The HPLC result. We require 99%+.
- Lab and signatures. The independent lab performing the analysis, with analyst and reviewer attribution.
Storage and handling (research lab context)
Lyophilized Selank should be stored at -20°C or below for extended stability. Once reconstituted in bacteriostatic water, the solution is typically held at 2–8°C and used within the stability window documented for that compound. Repeated freeze–thaw cycles should be avoided, and the powder should be protected from light and moisture throughout. Standard aseptic technique applies during reconstitution.
Where to buy Selank 10mg
The same eight questions apply whether you're buying Selank 10mgfrom us or anywhere else. Vendors who can't answer any of them are worth a closer look.
Vendor evaluation checklist
1. Is the Certificate of Analysis public and downloadable?
A vendor unwilling to publish HPLC/MS results for the batch you're buying has nothing to verify their purity claim against.
2. Which testing method was used — HPLC, Mass Spectrometry, or both?
HPLC measures purity. Mass Spectrometry confirms the molecule's identity. Reputable batches go through both.
3. What's the verified purity percentage on the published COA?
Industry research standard is 99%+. Below that, you're paying for a compound diluted with synthesis byproducts.
4. Where does the product ship from?
US-based fulfillment generally means shorter handling times, customs-free delivery, and clearer return remedies.
5. Is the price published at a single list rate, or hidden behind tier locks?
Opaque pricing is a yellow flag. Transparent vendors quote the same number to every customer.
6. What's the free-shipping threshold, if any?
Compare the all-in cost (product + shipping + handling) — not just the headline price.
7. How is the product stored prior to shipment?
Lyophilized peptides degrade with temperature swings. Vendors should disclose temperature-controlled storage.
8. Is there a documented damage-claim and return policy?
Discreet shipping carries handling risk. A clear, written policy protects you when something goes wrong.
MHS LongevityThis site - Price
- $80
- Purity
- 99%+
- Testing
- HPLC + MS
- COA public
- US-based
- Free shipping
- $150+
- Last checked
- May 13, 2026
| Vendor | Price | Listed purity | Testing method | COA public | US-based | Free shipping | Last checked |
|---|---|---|---|---|---|---|---|
MHS LongevityThis site | $80 | 99%+ | HPLC + MS | $150+ | May 13, 2026 |
Competitor data sourced from each vendor's public product page on the date shown. Listed purity reflects each vendor's own published claim; Certificate of Analysis availability is verified at the URL above. Data may have changed since last check.