Prime Peptides
Online seller of research peptides with a 23-item public catalog, a testing page naming Janoshik, Freedom Diagnostics.
As of October 19, 2026, Prime Peptides publishes a public certificate-of-analysis (COA) or test-results page and names 2 outside testing labs (Janoshik, Freedom Diagnostics), and mentions endotoxin testing. FDA sent it a warning letter on December 10, 2024 (unapproved new drugs/misbranded). We have not tested its products. FDA record.
- COA / test page
- Published
- Labs named
- Janoshik, Freedom Diagnostics
- FDA warning letter
- Yes, December 10, 2024
- Listed $/mg
- $4.33–$14.00
- Catalog matched
- 19 compounds
Quality & trust signals
What Prime Peptides' own pages say, with the page and the date we read it. Vendor claims are labeled as such; we have not independently tested products.
- Research-use-only notice
- Yes — the site says: “Prime products are sold for laboratory research use only”
- Prime Peptides — site copyChecked
- HPLC mentioned
- Vendor copy: “9 Sep 2026 Certificate of analysis NAD+ 1000 mg 99.9% HPLC purity Lot DPS-2586061 Quantity 1013 mg Other tests Endotoxin: Pass Lab”
- Prime Peptides — site copyChecked
- Endotoxin testing mentioned
- Vendor copy: “HPLC purity Lot DPS-2586061 Quantity 1013 mg Other tests Endotoxin: Pass Lab Horizon Analytical Report # 1028875 View the PDF All 49”
- Prime Peptides — site copyChecked
- Shipping (vendor-stated)
- “Research-grade peptides made in the USA, tested lot by lot by independent labs, and shipped from Santa Barbara”
- Prime Peptides — site copyChecked
- Regulatory status: FDA warning letter
- Yes — FDA warning letter 695156 dated December 10, 2024 (unapproved new drugs/misbranded).
- FDA — warning letter 695156Checked
Prime Peptides prices per mg
Prices listed on Prime Peptides' own product pages on October 19, 2026, for the five compounds we track. Price per mg = listed price ÷ total mg (vials × mg per vial). Research use only.
| Compound | Product | Total mg | Price | $/mg | Stock |
|---|---|---|---|---|---|
| BPC-157 | BPC-157 — 10mg | 10 | $55.00 | $5.50 | In stock |
| Retatrutide | Retatrutide — 60mg | 60 | $325.00 | $5.42 | In stock |
| Retatrutide | Retatrutide — 30mg | 30 | $230.00 | $7.67 | In stock |
| Retatrutide | Retatrutide — 10mg | 10 | $110.00 | $11.00 | In stock |
| Semaglutide | Semaglutide — 20mg | 20 | $150.00 | $7.50 | In stock |
| Semaglutide | Semaglutide — 10mg | 10 | $110.00 | $11.00 | In stock |
| Semaglutide | Semaglutide — 5mg | 5 | $70.00 | $14.00 | In stock |
| TB-500 | TB-500 (TB4) — 10mg | 10 | $65.00 | $6.50 | In stock |
| Tirzepatide | GLP-2 — 60mg | 60 | $260.00 | $4.33 | In stock |
| Tirzepatide | GLP-2 — 30mg | 30 | $160.00 | $5.33 | In stock |
| Tirzepatide | GLP-2 — 10mg | 10 | $100.00 | $10.00 | In stock |
Compounds in Prime Peptides' catalog (19)
Products in Prime Peptides' public catalog on October 19, 2026 that we matched to a compound profile. Listing is not verification of identity or purity.
AOD-9604BPC-157BPC-157 + TB-500 blendCJC-1295 + ipamorelinGHK-CuGLOW blendGlutathioneIpamorelinKLOW blendMelanotan IMelanotan IIMOTS-cRetatrutideSemaglutideSemaxSermorelinTB-500TesamorelinTirzepatide
Prime Peptides FAQ
Does Prime Peptides publish certificates of analysis (COAs)?
Yes. Prime Peptides' site links a testing or COA page and names Janoshik, Freedom Diagnostics. Match any certificate to the lot number on the vial you receive.
Has the FDA sent Prime Peptides a warning letter?
Yes. FDA issued a warning letter dated December 10, 2024 (unapproved new drugs/misbranded). It is linked on this page.
How much does Prime Peptides charge per mg?
On October 19, 2026 its listed prices ranged from $4.33 to $14.00 per mg across 11 products we could verify (BPC-157, TB-500, semaglutide, tirzepatide or retatrutide). See the table on this page.
Where does Prime Peptides ship?
Prime Peptides says: Research-grade peptides made in the USA, tested lot by lot by independent labs, and shipped from Santa Barbara
Is Prime Peptides legit?
We don't rate vendors. What we can verify: it links a testing page, it names 2 testing labs, and it has received an FDA warning letter. Its products are sold for research use only.