GLP1 Protocol
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Selank Coupon

One field, one code, and a total that has to change on screen before you press confirm.

The selank coupon worth having is PEPTIDEDECK, which takes 50 percent off the list price and brings a 10 mg vial from $47.50 to $23.75. That is $2.38 per milligram, and it is applied in the coupon field at checkout rather than automatically.

This is a short page on purpose. There is one code, it does one thing, and the only parts that need explaining are the order you do it in and the two situations where it behaves differently from how people expect. This is research material sold for laboratory use, not for human consumption.

Where the order actually gets placed

Ascension Peptides, Selank

US-based and third-party tested. Enter the code on the payment step and the vial halves before you confirm.

CodePEPTIDEDECK50% off
Selank · 10 mg$47.50$23.75Get 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.

What the selank coupon changes, in numbers

Stage10 mg vialPer mg
Struck-through original$60.00$6.00
Current list$47.50$4.75
After PEPTIDEDECK$23.75$2.38

Two reductions are visible on the product page and only one of them is the code. The vendor already moved the list from $60.00 to $47.50, and PEPTIDEDECK halves whatever the list happens to be on the day you buy. If the list moves again, the code still takes half, and the arithmetic above is the thing to redo rather than the discount to doubt.

The order of operations at checkout

The code is not the first thing you do, and the sequence is the part people get wrong.

Build the cart first. Add the vial, and add the consumables in the same order if you need them, because a Selank vial is dry lyophilised powder and bacteriostatic water, syringes and alcohol wipes are separate products with separate lines. Adding them later means a second order and a second shipping charge.

Enter the code second, in the coupon or discount field on the cart or checkout page. Apply it. Then stop and read the screen. The line item for the vial should now say $23.75, and the subtotal should have moved by the same amount. A field that swallows the code without changing anything has not applied it.

Check the shipping line third, because it is charged separately and the code does not touch it. Domestic shipping is a flat $15 unless the cart clears $250. One discounted vial does not, so the realistic figure at the payment step is $38.75.

Confirm last, and only once those three numbers read the way you expect. This is worth doing properly because the vendor states that once an order has been processed or shipped it cannot be cancelled, modified or returned, and all sales are final. There is no undo screen and no support ticket that reprices a confirmed order. The thirty seconds spent reading the subtotal is the entire safety net.

One free thing to do while you are there: orders placed after 2 P.M. Central are processed the next business day. The code does not care what time it is, but the delivery date does.

What it does not stack with, stated plainly

The vendor runs quantity tiers alongside the code. Buying 3, 5 or 10 vials takes 3, 5 or 10 percent off list, landing at $46.08, $45.13 and $42.75 per vial.

Whether PEPTIDEDECK applies on top of a tiered price is not documented anywhere the vendor publishes. We are not going to claim it does. Assume it does not, build the cart both ways if you are buying multiples, and compare the two subtotals in front of you.

The comparison is not close in any case:

RouteVialsCart totalPer mg
Coupon, single vial1$23.75$2.38
Tier, three vials3$138.23$4.61
Tier, five vials5$225.63$4.51
Tier, ten vials10$427.50$4.28

Ten percent off ten vials is nearly double the per-milligram cost of fifty percent off one. The tier route only makes sense if you wanted ten vials anyway.

The one place the coupon works against you

Free shipping starts at $250, and the code halves the value of every line in the cart before that threshold is measured.

Ten vials at the ten percent tier come to $427.50 and ship free. The same ten vials at the coupon price come to $237.50, which is $12.50 short, so the flat $15 applies. A cart that looks like it should obviously qualify does not, and the reason is that the discount happens first.

This is not a trap, it is just an ordering effect, and it is visible on the checkout screen before you pay. Read the shipping line rather than assuming a large cart is exempt.

What no discount code touches

At $23.75 the price stops being the interesting variable, and what replaces it is the testing scope on the specific lot you are sent.

Ascension publishes two certificates for Selank and they do not cover the same ground. The February 2026 certificate for lot 29-01260229 reports 99.32 percent purity by HPLC-UV, confirms identity by mass spectrometry, and stops there. The June 2026 certificate for lot 29-05260628 reports 99.371 percent purity and adds an endotoxin safety screen at or below 0.5 EU/mL marked pass, a microbial sterility screen returning no growth, and arsenic, cadmium, lead and mercury all negative.

That gap matters because FDA's stated concern about this compound is immunogenicity arising from aggregation and peptide-related impurities, which is a question an endotoxin and sterility screen speaks to and a purity figure does not. The agency records Selank among substances nominated for the compounding list and then withdrawn, and it holds no FDA approval for any use.

So the thing to do when the box lands is not to re-check the price. It is to read the lot number printed on the vial, look up the certificate for that lot, and see which of the two scopes you were sent. Both cost $23.75.

Common questions

Common Concerns

What is the current selank coupon and what does it do?expand_more
PEPTIDEDECK, and it takes 50 percent off the list price. A 10 mg Selank vial lists at $47.50, reduced from $60.00, so the code brings it to $23.75. That is $2.38 per milligram of labelled material. The discount applies to the line item only, not to shipping, so a single discounted vial still carries the flat $15 domestic charge and reaches the payment step at $38.75.
Where in the checkout does the selank discount code go?expand_more
In the coupon or discount field on the cart and checkout page, before you confirm the order rather than after. Enter it, apply it, and wait for the line item to change on screen. The subtotal should read $23.75 for one vial. If the field accepts the code without the total moving, the code has not applied, and confirming the order at that point pays the full price. Ascension states that once an order has been processed or shipped it cannot be cancelled or modified, so there is no route back to fix it afterwards.
Does the selank promo code stack with the 3, 5 and 10 unit discounts?expand_more
It is not documented, which is not the same as no. The vendor publishes quantity tiers of 3, 5 and 10 percent off list and publishes the code separately, and nowhere states whether the two combine. Assume they do not, because that is the assumption that cannot cost you money. Build the cart both ways, apply the code to each, and compare the two subtotals on screen. The tiers lose badly on their own in any case: 10 percent off ten vials is $4.28 per milligram against $2.38 for one discounted vial.
Does the coupon get you to free shipping faster?expand_more
It does the opposite. Free shipping starts at $250 and the code halves the value of every line in the cart, so a cart that would have cleared the threshold at list price may not clear it discounted. Ten vials at the 10 percent tier come to $427.50 and ship free. Ten vials at the coupon price come to $237.50 and stay $12.50 short, so a $15 charge applies. That is a real quirk rather than a trick, and it is worth checking the shipping line before you confirm rather than assuming a big cart ships free.
Is there anything the discount does not change?expand_more
The testing scope on the lot you receive, which is the part that actually decides whether the purchase was worth anything. Ascension publishes two certificates for Selank and they do not cover the same ground. The February 2026 certificate for lot 29-01260229 reports purity and identity only. The June 2026 certificate for lot 29-05260628 adds an endotoxin screen, a microbial sterility screen and a heavy metal panel. The price is identical either way, so match the lot number on the vial to its certificate when the box arrives and read which of the two you were sent.

Keep exploring

The full Selank price breakdown runs the tiers, the assayed quantities and the consumables total in one place. The same code covers the rest of the catalogue, so the retatrutide coupon page and the BPC-157 coupon page are worth a look if you are building a single cart rather than paying two shipping charges.

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