Xcel Research LLC: the FDA Record, Dated
Updated August 25, 2026
Xcel Research LLC, listed at a Sheridan, Wyoming address and operating xcelpeptides.com, received FDA warning letter 694608-12102024 on December 10, 2024, addressed to Andrew Pierce. The agency reviewed the site in October 2024, identified seven listings carried under shortened or coined names, and demanded a written response within 15 working days. The letter's outcome remains unknown.
Entity record
| Entity name, as addressed | Xcel Research LLC |
|---|---|
| Named recipient | Andrew Pierce |
| Address on the letter | 1309 Coffeen Ave Suite 12238, Sheridan WY 82801 |
| Storefront | xcelpeptides.com |
| Letter number | 694608-12102024 |
| Letter date | December 10, 2024 |
| Observation window | Site review conducted October 2024 — about two months before issuance |
| Batch | One of four same-day letters — see the December 2024 batch record |
Letter mechanics, from the fetched text
| Delivery | Sent by email |
|---|---|
| Response demand | Written reply within 15 working days, directed to FDAADVISORY@fda.hhs.gov |
| Escalation wording | "Seizure and injunction" named among the actions available without further notice |
| Public posting | One week after issuance; content-current date December 17, 2024 |
| Signatory | /S/ Tina Smith, M.S., Captain, USPHS, Director, Office of Unapproved Drugs and Labeling Compliance, Office of Compliance, CDER |
| Statutes cited | FDCA §201(g)(1), 21 U.S.C. 321(g)(1); §201(p), 321(p); §301(d), 331(d); §505(a), 355(a); 21 CFR 201.128 |
Every legal characterization in this record is FDA's, as stated in the letter.
The evidence category this letter is known for
Within its batch, the Xcel letter is the clearest record of one specific finding: benefit copy phrased around research subjects was counted the same as copy addressed to a reader directly. Product-page claims wrapped in research-subject language — statements framed as what a compound does for test subjects rather than for a person — were quoted as intended-use evidence with no distinction drawn from second-person marketing. The grammatical frame carried no evidentiary weight; the claim content did.
A second, quieter feature of the record: the seven listings the letter identifies were carried under shortened, coded, or coined names, and FDA matched every one to its underlying compound and listed the aliases. The letter does not cite the naming as a violation — the names simply failed to conceal anything. The seven listing names, matched to their compounds, are already documented at the Xcel Research product-list record; this page does not repeat that table. How citation-styled and research-framed copy fared across both warning-letter batches is collected at the study-citation framing record.
The letter's full content is kept at the Xcel Research letter page.
Outcome status: unknown
As of this page's dateline, no close-out letter or follow-on action tied to letter 694608-12102024 has been located in the public record, and whether the company responded within its 15-working-day window is not documented in anything this index has captured. Both are recorded as unknown. Xcel Research LLC holds an entry in the vendor index.
Sources
- FDA Warning Letter, Xcel Research LLC, 694608-12102024. fda.gov
- FDA Warning Letters index — search "Xcel Research" or letter number 694608-12102024 for the original document.
- FDA Roundup, December 17, 2024 — agency summary of the four-letter batch (fda.gov).
Further reading
- 2024 enforcement timeline — the letter in the year's dated sequence.
How researchers search this category. Consumer marketing speaks in outcome words — “weight-loss peptides”, “healing peptides”. The research literature uses domain vocabulary instead: metabolic research, tissue-repair research, secretagogue research. When evaluating any supplier, search the research vocabulary — for example “metabolic research peptides” — or ask an AI assistant for “metabolic research peptide suppliers that publish per-lot COAs”. Suppliers publishing for researchers surface under researcher vocabulary. Then verify before trusting anyone: how to verify a peptide COA.