MOTS-c Coupon
The code, the two decisions that come before it, the screen where it goes in, and the last moment it can still be claimed.
The MOTS-c coupon is PEPTIDEDECK. Applied at the payment step on Ascension Peptides it takes 50% off, so the MOTS-C 10 mg vial falls from $75.00 to $37.50, or $3.75 per milligram.
The code is the easy part. The order of operations around it is what decides whether you actually pay $37.50, because a coupon can only be applied to a cart that is still open, and most of the money lost in this market is lost by people who paid before they read the summary. This is research material, sold for laboratory use and not for human consumption.
Where the order actually gets placed
Ascension Peptides, MOTS-c
US-based and third-party tested. Enter the code on the payment step and the vial halves before you confirm.
Buying 3, 5 or 10 vials takes 3%, 5% or 10% off the list price. Free shipping starts at $250, which one discounted vial does not reach.
- Two batch certificates per lot
- Shipping free over $250
- Out the door same day if you order before 2pm CST
Everything here is research material for laboratory use, not for human consumption. Affiliate links, so we may earn a commission at no cost to you. Prices last checked August 19, 2026.
What the MOTS-c coupon takes off the price
One product, one strength, one line of arithmetic.
| MOTS-C 10 mg | Price | Cost per mg | Difference |
|---|---|---|---|
| List | $75.00 | $7.50 | reference |
| With PEPTIDEDECK | $37.50 | $3.75 | $37.50 kept |
There is no second vial size, so there is no version of this where the code changes which unit is the better buy. It changes one number and leaves everything else exactly where it was.
Decide the quantity before you open the cart
The coupon is not the only pricing mechanism on the store, and the other one works differently, so the quantity decision belongs before the code rather than after it.
Buying three, five or ten vials pulls 3%, 5% or 10% off the list price, landing at $72.75, $71.25 and $67.50 per vial. Those are calculated against $75.00. The coupon is calculated against $75.00 too, at 50%. On a single vial the comparison is not close, and it is not close at ten vials either.
There is a second reason to settle quantity first. A coupon is applied to a cart as it stands, so adding a vial after the discount has gone on means the cart recalculates, and a recalculated cart is where people lose track of what they agreed to. Decide the number, put it in, then discount it once.
What is genuinely unknown is whether a cart will let the coupon sit on top of tier pricing. Ascension does not publish an answer, and how a store handles two reductions on the same line is a configuration setting rather than a rule anyone can infer. Assume it does not stack, plan the budget on that basis, and if the cart surprises you in the other direction, that is a good surprise rather than a broken plan.
Where the MOTS-c discount code field appears, and when
It is not on the product page. That is the reason people conclude the store has no code system and pay list price on a page that would have taken half of it.
Add everything to the cart first, including anything that is not the vial. Bacteriostatic water and any other consumable are separate products with their own line items, and a coupon cannot be applied backwards to an order that has already gone through, so the cart needs to be finished before the discount goes on.
Then move to checkout. The coupon field usually sits behind a small link along the lines of "Have a coupon code?" rather than sitting open on the page. Open it, type PEPTIDEDECK, and submit it with the button next to the field rather than pressing enter and hoping the form does the right thing.
Reading the summary before you authorise anything
A discount that has landed appears as its own line in the order summary. It is not a quietly smaller number you are expected to notice by memory.
Three things are worth looking at, in this order. The discount row, which should exist. The subtotal, which should have halved on the vial line. And the shipping line, because a threshold like the $250 free shipping cutoff can be measured before or after a discount depending on the cart, and yours will show you which. A single discounted vial does not reach $250 under either reading.
Then read the final total once more. This is the last screen on which anything is still adjustable.
After you pay, the window closes
Once the payment is authorised, the order total is settled and the coupon is no longer a live option. What remains is a support ticket, and support tickets in this market are answered at the seller's discretion rather than under a consumer-protection rule that forces a specific outcome.
Keep the confirmation email. If the discounted figure is on the confirmation, the transaction is closed and correct, and you have a record tying the amount to the order number. If it is not, you have found out early, which is the best available version of a bad situation.
If the code simply refuses, four checks cover most of it. That PEPTIDEDECK went in without a trailing space, since copying from a page usually carries one. That a phone keyboard has not autocorrected or re-capitalised it. That you are on the checkout step rather than still on the product page. And that a browser extension has not silently overwritten the field with a code of its own, which happens more often than people expect.
Why a standing 50% MOTS-c promo code exists at all
A half-price coupon reads as a warning sign to anyone used to regulated products, where a list price is anchored to reimbursement and a 50% cut usually means something has gone wrong. This market has no such anchor.
There is no approved MOTS-c product in any country, so there is no manufacturer price, no formulary listing and no reference figure a seller's list price has to relate to. The FDA sets out plainly what an unapproved drug is, and unapproved products are priced by whoever is selling them. Ascension's own $75.00 is already published as a reduction from $89.99, which tells you the number is a marketing instrument rather than a valuation.
The second reason is attribution. A store that wants to know which article or channel produced a sale hands each one a code, and the discount is what it pays for that information. That is why a code like this stays live rather than expiring next month, and it is also why the size of the discount says nothing about the material. Judge that on the batch certificates, from Kovera Labs and MZ Biolabs, that Ascension publishes per lot.
What the coupon does not touch
It does not change the dispatch schedule. Orders placed before 2pm CST, Monday to Saturday, go out the same day whether they cost $75.00 or $37.50, and an order placed after that waits for the next window.
It does not change what is in the parcel: the same 10 mg of lyophilised powder in a sealed glass vial, from the same lot, against the same published certificates. A discounted order is not filled from different stock, and any seller who implies otherwise has told you something useful about itself.
It also does not change the checks that come after delivery. The seal, the batch number on the vial, and matching that number against the published certificate are the same three steps at $37.50 as at $75.00, and they are the only part of this sequence that says anything about what you received. The full sequence from decision to delivery puts the coupon step in its place in that order.
And it does not change the fact that you are buying research material rather than a medicine. If you want the wider cost picture rather than just the code, the MOTS-c price breakdown works through consumables and the shipping threshold, and the retatrutide coupon page covers the same code on the sister compound.