Research peptide suppliers we have checked (2026): codes, prices and labels
These are the research peptide suppliers we have checked and link to, with their current discount codes. Four ship within the US; CertaPeptides ships to the EU, Switzerland and the UK. Each one has a full review with prices for every compound in our library. Prices and codes were checked on 29 October 2026; the checkout total is what counts.
- Ascension Peptides: code IZBA50OFF takes 50% off. BPC-157 10 mg came to $24.50 in our test.
- Validated Peptides: code SPOOKY20 for 20% off sitewide while the Halloween offer runs.
- True Peptides: 10% off your first order after the researcher check.
- CertaPeptides (EU and UK): code AFF-IZBATAZEEM for 10% off.
- Lumin Peptides: lowest list prices on several peptides, no code.
Suppliers at a glance
| Supplier | Label | Code or offer | BPC-157 10 mg | Ships | |
|---|---|---|---|---|---|
| Ascension Peptides | Caution | IZBA50OFF (50% off) | $49 $24.50 with IZBA50OFF | within the US only | Visit · Review |
| Validated Peptides | Caution | SPOOKY20 (20% off) | $39.99 $31.99 with SPOOKY20 | within the US only | Visit · Review |
| True Peptides | Caution | 10% off the first order after researcher confirmation | $59 10% off first order | within the US only | Visit · Review |
| CertaPeptides | Caution | AFF-IZBATAZEEM (10% off) | €49.99 €44.99 with AFF-IZBATAZEEM | to the EU, Switzerland and the UK | Visit · Review |
| Lumin Peptides | Caution | - | $44.99 - | from the US | Visit · Review |
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Ascension Peptides
- Vendor claim: every batch is tested by a third-party lab, with batch COAs on product pages and a COA library. The pages we checked named the lab (Kovera Labs) and the batch number.
- Free shipping on orders over $250.
- Why Caution: it also sells GLP-1 class research compounds under code names, plus HCG and oxytocin. No FDA warning letter found in our search on 29 October 2026.
Read the full Ascension Peptides review
Validated Peptides
- Shows the current lot's COA on each product page: HPLC purity, net peptide content and identity, from an ISO/IEC 17025 accredited lab (not named on the page).
- 30-day refund on unopened vials. No FDA warning letter found as of 28 October 2026.
- Why Caution: it sells bacteriostatic water and GLP-1 research compounds, checks only age (21+), and its product descriptions make therapeutic claims we do not endorse.
Read the full Validated Peptides review
True Peptides
- Asks buyers to confirm in-vitro research use before entering the shop, and its affiliate rules ban dosing and human-use content.
- Vendor claim: HPLC and mass-spec testing on every lot, with a lot-matched COA database.
- Why Caution: it also sells GLP-1 research compounds and peptides outside our library such as PT-141 and Melanotan II. No FDA warning letter found as of 28 October 2026.
Read the full True Peptides review
CertaPeptides
- EU supplier (CERTALAB S.R.L.) shipping to 26 EU countries, Switzerland and the UK. Prices in euros; free shipping over €200.
- Vendor claim: selected lots tested by Janoshik Analytical, with report numbers on product pages and a COA lookup. The BPC-157 report we saw covers a sister lot from the same production batch, not the exact lot shipping.
- Why Caution: it also sells retatrutide, Melanotan, PT-141 and oxytocin, and groups products under health-style category names.
Read the full CertaPeptides review
Lumin Peptides
- Vendor claim: every batch is tested by accredited third-party labs at 99%+ purity.
- No dosing on product pages, and no FDA warning letter found as of 27 October 2026.
- Why Caution: its shop also sells a reconstitution kit with syringes and a multi-dose injection pen, its blog makes health claims we do not endorse, it sells GLP-1 research compounds, and it does not verify researchers.
Read the full Lumin Peptides review
Compare prices for one compound
Every compound page has a price table across all four suppliers: BPC-157 · TB-500 · GHK-Cu · MOTS-c · Epitalon · NAD+ · Selank · Semax · DSIP · KPV · Thymosin Alpha-1 · Retatrutide · Tirzepatide · Semaglutide · Argireline · Matrixyl.
How we label suppliers
Recommended, Caution or Avoid, using six checks: batch COA, named lab, identity and purity data, no human-use marketing, no FDA warning letter and a researcher confirmation step. The full method is in our editorial policy. Check any other site with the vendor check and read how to verify a COA.
Questions researchers ask
Which research peptide supplier is cheapest?
On 29 October 2026, with codes applied, Ascension Peptides was cheapest for BPC-157 10 mg at $24.50 with IZBA50OFF. Without codes, Validated Peptides had the lowest price per mg for BPC-157 at $4.00. Prices for other compounds are on each compound page.
Which suppliers do you recommend?
None has our Recommended label yet: every supplier listed here is Caution, and the reason is shown on each review. We list them because they publish research-only product pages and COA information.
Which supplier ships to the UK or EU?
CertaPeptides ships to 26 EU countries, Switzerland and the UK, with prices in euros. Ascension, Validated and True Peptides ship within the US only; Lumin ships from the US.
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