The Synthesis Peptides coupon code is PEP2026. It takes 10% off your order at Synthesis Peptides, a veteran-owned research peptide store in Las Vegas. We earn a commission if you order through our link or code, at no extra cost to you.
For laboratory research use only. Not for human consumption, diagnostic, or therapeutic use.
Synthesis Peptides sells research peptides, tablets and copper-peptide hair and skin products at synthesispeptides.co. It says it was founded by a disabled combat veteran, it ships within the United States only, and it publishes a searchable library of batch lab reports. On top of the code, it runs a points and membership scheme: its VIP plan adds free 2-day shipping and early access to new products.
Synthesis Peptides Coupon Code Details (PEP2026)
- Coupon code:
PEP2026 - Discount: 10% off your order
- Free shipping: on US orders over $250, or on every order with a paid membership (see below)
- Military and first responders: a separate 20% discount through VerifyPass
- Store link: Synthesis Peptides store (we earn a commission if you order through this link or code)
- Verification status: listed on October 8, 2026. We have not yet tested whether the code combines with points, membership perks or the military discount.
Synthesis Peptides at a Glance
| Detail | Synthesis Peptides |
|---|---|
| Coupon code | PEP2026, 10% off |
| Based in | Las Vegas, Nevada, USA (veteran-owned) |
| Ships to | United States only |
| Dispatch | Same day on orders placed before 12pm PST, Monday to Friday |
| Carrier | USPS or UPS priority service with tracking |
| Delivery | 1 to 3 business days after dispatch, per its shipping page |
| Free shipping | US orders over $250; free on every order with Insider, VIP or Founder membership |
| VIP membership | $19.99/mo: 5x points, free 2-day shipping, early access to every drop |
| Payment | Visa, Mastercard, Amex, Discover and PayPal, per its FAQ |
| Testing labs | Freedom Diagnostics, ILS Laboratories and Kovera Labs on the reports we opened |
| Published lab reports | 121 certificates in its COA library when we checked |
| Catalog | 41 products, from $14.99 to $299.99 |
| Returns | All sales final; defective or incorrect items reported within 72 hours are replaced, credited or partly refunded |
Synthesis Peptides Review: Our Verdict
What we found when we checked the store on October 8, 2026:
- Lab reports for many batches: its COA library lists 121 certificates you can search by product or lot number, each with the purity figure and test date.
- Broader panels than most: the recent Freedom Diagnostics and ILS reports we opened cover endotoxin, a microbial screen and heavy metals, not only purity and identity.
- More than one lab: the reports we opened came from three labs, Freedom Diagnostics, ILS Laboratories and Kovera Labs, depending on the batch date.
- Prices: GHK-Cu cost $36.99, BPC-157 $49.99, Tesamorelin $79.99 and the BPC-157 + TB-500 blend $99.99 before the code.
- Shipping perks: free shipping over $250, and the paid memberships make standard shipping (Insider) or 2-day shipping (VIP and Founder) free on every order.
- Drawbacks: US addresses only, all sales are final, and its own pages give slightly different dispatch cutoffs and delivery windows (see Shipping below).
How to Apply the Synthesis Peptides Coupon Code
- Open the Synthesis Peptides store. We earn a commission if you order through this link.
- Confirm the age check, then pick a product and size from the catalog.
- Click Add to cart, then open your cart.
- Type
PEP2026into the discount code box. - Apply the code and check that the 10% discount shows in your totals before you check out.
Estimated Savings with PEP2026
The code takes 10% off your order. These are the store’s single-unit prices on October 8, 2026, and what they come to after 10% off, before shipping:
| Product | Price | With PEP2026 |
|---|---|---|
| GHK-Cu | $36.99 | $33.29 |
| BPC-157 | $49.99 | $44.99 |
| NAD+ | $63.99 | $57.59 |
| TB-500 | $74.99 | $67.49 |
| Tesamorelin | $79.99 | $71.99 |
| BPC-157 + TB-500 | $99.99 | $89.99 |
| KLOW 80 | $129.99 | $116.99 |
These are our estimates at 10% off the listed price; the store’s checkout may round differently. Orders over $250 also ship free.
Synthesis Peptides VIP Membership and Free Shipping
The banner across the top of the store reads: ⭐ Go VIP: 5x points, free 2-day shipping, and early access to every drop, from $19.99/mo. The membership page lists four tiers. These are the monthly prices on October 8, 2026:
| Plan | Price | Points per $1 | Free shipping | Other perks |
|---|---|---|---|---|
| Member | Free | 2.5x | Over $250 only | Research Box: up to 2 boxes a month |
| Insider | $9.99/mo | 3.5x | Free standard shipping | Up to 3 Research Boxes a month |
| VIP | $19.99/mo | 5x | Free standard and free 2-day shipping | Early access and member drops, up to 4 Research Boxes |
| Founder | $99.99/mo | 10x | Free standard and free 2-day shipping | Priority fulfillment, up to 5 Research Boxes, +2,500 bonus points a month |
How the points work, per the store:
- 100 points = $1 off a future order, redeemed at cart or checkout in $1 steps.
- Points are credited when an order ships. New accounts get a one-time 100-point signup bonus.
- Returned orders give the points back first.
A yearly billing option is also offered on the membership page. Whether VIP is worth it depends on how often you order: on a single order under $250, free 2-day shipping is the main saving, while the points add up over repeat orders.
Synthesis Peptides Lab Reports and Purity
Synthesis Peptides publishes its certificates in a searchable COA library. We opened three of them:
| Product (lot) | Lab | Reported | HPLC purity | Net content | Also tested |
|---|---|---|---|---|---|
| Retatrutide 10mg (3GR10926), sold as SYN-3RT | Freedom Diagnostics | Aug 15, 2026 | 99.75% (4 vials, 99.59% to 99.84%) | 12.25 mg average | Identity (LC-MS), endotoxin, microbial PCR, heavy metals, fentanyl screen |
| Retatrutide 10mg (3G10726US), sold as SYN-3RT | ILS Laboratories | Aug 5, 2026 | 99.70% (mean of 4 samples 99.60%) | 10.32 mg | Identity, endotoxin (USP <85>), sterility (PCR), heavy metals, fentanyl screen |
| Tesamorelin 10mg (TS10626) | Kovera Labs | May 20, 2026 | 99.359% (3-vial average) | 10.24 mg | Identity (LC-MS), endotoxin, microbial sterility screen, heavy metals |
Other recent entries in the library, as listed on its COA page (we did not open these reports): TB-500 10mg at 99.69%, KLOW 80 at 99.67%, MT2 10mg at 99.72% and Selank 30mg at 99.68%, all tested August 15, 2026.
A few things to keep in mind:
- Each report covers the tested batch only. Check that the lot number on your vial matches the certificate.
- You can check two of the labs yourself. The ILS report carries an access code for the lab’s verify portal, and the Kovera report one for koveralabs.com/verify. We did not run these checks for this guide.
- Net content above the label. The Freedom Diagnostics retatrutide report measured about 12 mg in a 10mg vial; the ILS report on another lot measured about 10.3 mg.
- Non-peptide items such as L-Carnitine and B12 appear in the library with a 0% purity field, since HPLC peptide purity doesn’t apply to them.
Our guide to reading a peptide COA explains each of these results, and our peptide testing labs guide covers how labs like these work.
What Does Synthesis Peptides Sell?
When we checked on October 8, 2026, the catalog listed 41 products, from $14.99 to $299.99. The store groups them by research area:
- GLP research: SYN-3RT, SYN-2TZ, SYN-1SG and Cagrilintide (out of stock)
- Recovery research: BPC-157, TB-500, BPC-157 + TB-500, KLOW 80, Glow 70 Blend, GHK-Cu and KPV
- Growth research: Tesamorelin, Sermorelin, Ipamorelin, CJC-1295 (No DAC) + Ipamorelin and IGF-1 LR3
- Metabolic research: MOTS-C, AOD-9604 and 5-Amino-1MQ
- Cognitive and stress research: NAD+, Selank, Semax and DSIP
- Anti-aging and other research: Epithalon, MitoSS-31, Glutathione, Thymosin Alpha 1, ARA-290, Cortagen, Cartalax and L-Carnitine
- Tablets: SLU-PP-332 and 5-Amino-1MQ (out of stock)
- Skin tone and hair: MT2, a Copper Renewal Cream, and GHK-Cu shampoo, conditioner and a hair care bundle
- Other: PT-141, plus reconstitution solution and acetic acid
Every product is sold for laboratory research use only.
Shipping, Payment and Returns
- Dispatch: orders placed before 12pm PST ship the same day, Monday to Friday. Orders from Friday afternoon through Sunday ship the next business day. Tracking can take up to 24 hours to arrive.
- Carrier and delivery: USPS or UPS priority service with tracking, typically 1 to 3 business days after dispatch.
- Free shipping: on US orders over $250, or on every order with a paid membership.
- Package protection: an optional add-on at checkout that covers loss or damage in transit.
- Where it ships: United States only.
- Payment: Visa, Mastercard, Amex, Discover and PayPal, according to its FAQ.
- Cancellations: within 1 hour of ordering, by email.
- Returns: all sales are final. If an item arrives defective or incorrect, email the store within 72 hours of delivery with your order number and a video of the product; it then offers a replacement, store credit or, in rare cases, a partial refund.
Where the store’s pages disagree: its homepage also mentions dispatch on orders placed “by 2pm”, its FAQ says 2 to 5 business days by USPS Priority Mail or FedEx, and the FAQ gives 48 hours to report a damaged order instead of 72. We have used the dedicated shipping and returns page above; check it before you order.
Military and First Responder Discount
Synthesis Peptides gives military members and first responders 20% off. You verify your status through VerifyPass on its military discount page, and it emails you a one-time-use code. Its FAQ also mentions tiered pricing for labs and institutions that buy in volume, by contacting the store.
Frequently Asked Questions
What is the Synthesis Peptides coupon code?
The Synthesis Peptides coupon code is PEP2026. It takes 10% off your order. We listed it on October 8, 2026, and we earn a commission if you use it.
Is Synthesis Peptides legit?
Synthesis Peptides is an operating US store with a published Las Vegas address, a support email and a WhatsApp line. It publishes a library of 121 batch certificates from named labs, and the three we opened matched the products and lots they describe. It ships within the US only and all sales are final.
Does Synthesis Peptides offer free shipping?
Yes. Shipping is free on US orders over $250. The Insider membership ($9.99/mo) makes standard shipping free on every order, and VIP ($19.99/mo) and Founder ($99.99/mo) add free 2-day shipping.
What do you get with Synthesis Peptides VIP?
VIP costs $19.99 a month. It earns 5x points per $1, includes free standard and free 2-day shipping, early access to new products and member drops, and up to 4 Research Boxes a month.
How do Synthesis Peptides points work?
Every order earns points when it ships, at 2.5x to 10x per dollar depending on your plan. 100 points are worth $1 off a future order.
Which labs test Synthesis Peptides products?
The certificates we opened came from Freedom Diagnostics, ILS Laboratories in San Diego and Kovera Labs, depending on the batch.
How fast does Synthesis Peptides ship?
Orders placed before 12pm PST on a business day ship the same day from Las Vegas. Its shipping page says delivery typically takes 1 to 3 business days after dispatch.
Does Synthesis Peptides ship internationally?
No. It currently ships within the United States only.
What payment methods does Synthesis Peptides accept?
Its FAQ lists Visa, Mastercard, Amex, Discover and PayPal.
Does Synthesis Peptides accept returns?
No. All sales are final. Defective or incorrect items reported within 72 hours of delivery, with a video, are replaced, credited or partly refunded.
For laboratory research use only. Not for human consumption, diagnostic, or therapeutic use.
Synthesis Peptides has its own listing in our supplier directory alongside the other stores we track. Our buyer’s guide covers what to check before you place an order.
Comparing stores? See this month’s peptide promo codes and coupons from every supplier we list, on one page.