FDA warning letters to peptide sellers
As of , the FDA’s public warning-letter list names the website of 15 of the 468 peptide stores we track. The most recent letter on this list is dated . Each row links to the letter on fda.gov where the FDA page address is on record.
15 of 468 tracked stores (3.2%) are named in an FDA warning letter, as of <time datetime="2026-10-10">10 Oct 2026</time>. A record of a letter, not a verdict on any store.
Warning letters matched to tracked stores
| Store | Letter date | FDA letter no. | FDA source |
|---|---|---|---|
| NuScience Peptides | 733652 | Read the letter on fda.gov | |
| Peptide Partners | 735063 | Read the letter on fda.gov | |
| Gram Peptides | 721806 | Find it in the FDA warning-letter list | |
| Mile High Compounds | 721600 | Read the letter on fda.gov | |
| Pekcura Labs | 721709 | Read the letter on fda.gov | |
| Pink Pony Peptides | 721088 | Read the letter on fda.gov | |
| Prime Sciences | 721805 | Read the letter on fda.gov | |
| Atomix Research | 719111 | Read the letter on fda.gov | |
| GLP-1 Solution | 715883 | Find it in the FDA warning-letter list | |
| USA Peptide | 696885 | Find it in the FDA warning-letter list | |
| Prime Peptides | 695156 | Read the letter on fda.gov | |
| Summit Peptides | 695607 | Find it in the FDA warning-letter list | |
| Veronvy | 694688 | Find it in the FDA warning-letter list | |
| Xcel Peptides | 694608 | Read the letter on fda.gov | |
| US Chem Labs | 669074 | Find it in the FDA warning-letter list |
How letters are matched
- Source. The FDA’s own public warning-letter list. Every night it is read and each new drug-related letter is opened once to see which websites it names.
- Exact website only. A letter is linked to a store only when it names that store’s exact domain. A similar company name is never enough, and nothing is matched by guesswork.
- A record, not a verdict. A warning letter is the FDA’s notice to a firm. This page reports that it exists and when; it does not say what a store sells now, whether the issue was resolved, or whether any product is safe. Letters can be closed out or withdrawn; check the FDA page for current status.
- Not a complete list of sellers. Letters to firms that are not among the stores we track are not shown here; the FDA list is the complete record. This page is not legal advice.
The same record appears on each store’s profile, where it affects the store’s trust tier under the published method: see how we verify and the vendor directory. A store that believes a match is wrong can submit a correction.
Related pages
- Peptide price history and 30/90-day movers
- GLP-1 research peptide prices per mg
- Live sales: sale price vs list price
- Peptide cost calculator (mg × $/mg)
- Which stores publish a certificate of analysis
- How much do peptides cost? Median $/mg by compound class
- Peptide price index: lowest $/mg by compound
- How $/mg is calculated
- Peptide market data for storefront owners