How long does delivery take?

From a domestic seller with a same-day cutoff, typically a few business days. The number worth watching is not the estimate but the first tracking scan, which tells you whether the parcel really originated where the listing said it did.

Will customs be a problem?

Not for a domestic order, which is most of the argument for paying more for one. For an international order it is a live risk, and a detained parcel usually means losing both the product and the money.

Does the discount code stack with the quantity tiers?

Not documented, so do not count on it. The tiers take 3%, 5% or 10% off list at 3, 5 and 10 vials and the code halves the price, but whether they combine is not something any published source confirms. Read the cart total.

What if the lot number does not match the certificate?

Ask the seller for the certificate covering your lot. A supplier running per-batch testing will have one. A supplier that reuses a single old document across every shipment will not, and that answer is worth having before you buy again.

Does it need refrigeration on arrival?

Lyophilised peptides are supplied dry precisely because that form tolerates shipping. Follow the storage conditions the seller states for the product as sold. We do not publish handling or preparation instructions here, because the product is sold for laboratory use and we are not going to write around that.

Is ordering this online legal?

Buying and selling as a research chemical is lawful. Selling it for human consumption is not, which is why credible listings carry a research-use-only label and no dosing guidance. Selank has no FDA approval for any indication and no compounding pathway.

Buy Selank Online: What Actually Turns Up in the Box

Summary: The order itself takes two minutes. This page follows what happens after it, from the payment method a seller accepts through to the vial on your doorstep and the checks worth doing that day.

This content is for informational purposes only and is not medical advice. Always consult a qualified healthcare provider before starting, changing, or stopping any medication.

Buy selank online and the checkout is the least interesting part of the process. What separates a good purchase from a bad one happens either side of it: which payment method the seller will take, and what condition the vial is in when it reaches your door.

The order this page traces from end to end is this one.

Where readers actually buy it

Ascension Peptides — Selank

Research-grade Selank, tested by two outside labs and shipped from the US. The code below takes half off the vial.

Code at checkoutPEPTIDEDECK50% off

Selank · 10 mg$47.50$23.75$2.38/mgGet the 10 mg →

The published certificate for lot 29-01260229 assays this vial at 12.29 mg against a 10 mg label, and reports no endotoxin or sterility testing. Buying 3, 5 or 10 takes 3%, 5% or 10% off the list price. Free shipping starts at $250.

Batch certificates from two independent labs
Free shipping over $250
Ships same day if ordered before 2pm CST

Sold for laboratory research only and not for human consumption. These are affiliate links: we may earn a commission at no cost to you, and it does not change what we recommend. Prices checked August 21, 2026.

Before you order: what this is, and what it is not

Selank is a synthetic heptapeptide, sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro, PubChem CID 11765600, formula C33H57N11O9, molecular weight 751.9 ^[3]. It is a tuftsin analogue, meaning its first four residues reproduce a natural immune peptide, with a Pro-Gly-Pro tail added to resist enzymatic breakdown. Russia registers it as an anxiolytic. No Western regulator has approved it for anything.

Readers who came from our GLP-1 material should know it is a different category entirely: no incretin receptor activity, no effect on appetite or gastric emptying, no weight-loss indication. It is also nowhere near the same evidence footing. The English-language literature is mostly preclinical, including electrophysiology work on rat hippocampal neurons ^[4], and the Russian clinical literature is hard to appraise from outside and frequently overstated when quoted second-hand.

What you are buying online, in every case, is a research chemical. There is no prescription route, because there is no approved product and Selank sits on no current FDA compounding category list. The full regulatory account is on our Selank without prescription page.

Buy Selank online step one: payment, and what it tells you

Payment method is the most underrated signal in this market, because it reflects what the seller's payment processor believes about the business.

Method	What it signals	What it means for you
Standard card checkout on the seller's own site	A processor has underwritten the business and it survived review	Chargeback rights exist. The strongest position a buyer can be in here
Card checkout that intermittently declines	Processing is precarious, often because of how products are described	Orders may need retrying. Not disqualifying, but expect friction
Bank transfer, Zelle, wire	No processor will take the account, or the seller prefers no reversibility	Effectively irreversible. You are extending unsecured credit to a stranger
Cryptocurrency at a discount	Same as above, with the discount pricing your loss of recourse	Irreversible by design. The discount is the compensation for that
Invoice sent by email after ordering	Often a sign of an off-platform workaround	Verify the domain carefully. This pattern is also how impersonation scams operate

A seller that takes ordinary cards on its own domain has passed a check performed by someone with money at stake. That is not proof of product quality, but it is the only third-party scrutiny in the whole transaction, and it is worth more than any badge graphic on a landing page. The same dynamic on a neighbouring compound is covered in card declines, codes and refunds on BPC-157, and the payment side of MOTS-c orders goes further into what happens when a processor drops a vendor mid-order.

Step two: the code and the total

On the listing above, Selank 10 mg is $47.50, reduced from $60.00. The code PEPTIDEDECK takes it to $23.75, which works out at $2.38 per milligram on the label weight.

Two things worth knowing before you assume they combine. Quantity discounts of 3%, 5% and 10% apply at 3, 5 and 10 vials against the list price, and they are a separate mechanism from the code. Whether the two stack is not documented anywhere we can point to, so do not plan a large order around the assumption that they do. Check the total the cart actually shows before paying, which is the only figure that is ever authoritative.

Free shipping starts at $250. A single discounted vial does not come close, so factor shipping into the comparison if you are pricing this against other sellers.

Step three: dispatch and transit

Domestic dispatch is the single biggest practical difference between sellers, and it matters for three reasons that have nothing to do with patience.

Customs is the obvious one. A parcel of unapproved peptides crossing a border can be detained or destroyed, and neither outcome comes with a refund from anyone. Domestic stock removes that risk entirely rather than reducing it.

Transit duration is the second. Lyophilised peptide is reasonably robust as a dry powder, which is exactly why it is sold in that form, but robust is not the same as indifferent. A week in a domestic network is a different exposure from three weeks routed through several climates.

The return path is the third and least discussed. If something is wrong, a domestic seller can take the vial back. An overseas one, realistically, cannot, and any refund becomes a matter of goodwill rather than logistics.

The listing above ships from the US with a same-day cutoff for orders placed before 2pm CST. That is a claim worth verifying against your own tracking rather than accepting: the meaningful evidence is the first scan location, which should be domestic.

Step four: what arrives

A small box, and inside it a sealed glass vial with a crimped cap containing a white lyophilised cake or powder. The label should name the compound, the quantity, and ideally the lot number. There is no dosing information on it and there should not be, because the product is sold for laboratory use.

Do four things the day it lands.

Match the lot. Read the lot number on the vial and compare it against the certificate published for the product. On the listing above that certificate covers lot 29-01260229, analysis date 2026-02-07, from MZ Biolabs in Tucson, Arizona ^[1]. If the vial carries a different lot, the document you read was describing someone else's batch, and you should ask for the one that matches yours.

Look at the cake. A lyophilised peptide should be a dry white cake or powder. Moisture, discolouration or a partially collapsed appearance is worth raising while the delivery is recent enough to do something about.

Check the seal. The crimp should be intact and the stopper undisturbed.

Photograph everything before opening. A vial, its label and the packaging, photographed on arrival, is the entire evidentiary basis of any complaint you might make later.

The document check nobody does, and should

Open the certificate for that lot and read what it actually covers ^[1]. On this one: purity 99.32% by HPLC-UV with the chromatogram and peak list printed, identity by mass spectrometry with a measured monoisotopic mass of 751.47 Da against an expected 751.43 Da, and a measured quantity of 12.29 mg in a vial labelled 10 mg. The overfill is lot-specific rather than promised, and publishing an assayed fill weight at all is unusual enough to count in the vendor's favour.

Then notice what is absent. There is no endotoxin test, no LAL assay, no pyrogen result and no sterility screen on that February document.

That absence maps directly onto the only thing FDA has put on record about this compound. The agency states that compounded drugs containing selank acetate "may pose risk for immunogenicity for certain routes of administration due to the potential for aggregation and peptide-related impurities", and that it "lacks important information regarding any safety issues raised by selank acetate administered to humans" ^[2]. Immunogenicity is the immune system responding to the material; aggregation and peptide-related impurities are the manufacturing causes FDA names. Purity testing constrains the impurity side. Endotoxin testing, which is not on that February certificate, is what addresses pyrogen load, and it is a wholly separate assay.

For the fullest version of why this test keeps deciding things, the sterility argument on the NAD+ injection page is the most detailed treatment on this site.

Questions about ordering

How long does delivery take?: From a domestic seller with a same-day cutoff, typically a few business days. The number worth watching is not the estimate but the first tracking scan, which tells you whether the parcel really originated where the listing said it did.
Will customs be a problem?: Not for a domestic order, which is most of the argument for paying more for one. For an international order it is a live risk, and a detained parcel usually means losing both the product and the money.
Does the discount code stack with the quantity tiers?: Not documented, so do not count on it. The tiers take 3%, 5% or 10% off list at 3, 5 and 10 vials and the code halves the price, but whether they combine is not something any published source confirms. Read the cart total.
What if the lot number does not match the certificate?: Ask the seller for the certificate covering your lot. A supplier running per-batch testing will have one. A supplier that reuses a single old document across every shipment will not, and that answer is worth having before you buy again.
Does it need refrigeration on arrival?: Lyophilised peptides are supplied dry precisely because that form tolerates shipping. Follow the storage conditions the seller states for the product as sold. We do not publish handling or preparation instructions here, because the product is sold for laboratory use and we are not going to write around that.
Is ordering this online legal?: Buying and selling as a research chemical is lawful. Selling it for human consumption is not, which is why credible listings carry a research-use-only label and no dosing guidance. Selank has no FDA approval for any indication and no compounding pathway.

Buy selank online and the two minutes at checkout will be the easiest part. The parts that decide whether it was a good purchase are the payment method you were offered, the lot number on the glass, and whether the seller can produce a document covering the batch actually in your hand.