Primary regulatory
Warning Letter: Gram Peptides
FDA warning letter discussing peptide products marketed online and the limits of research-use-only positioning.
U.S. Food and Drug AdministrationPublished 2026-03-31Accessed 2026-06-30
Registry record
Source metadata
- Publisher
- U.S. Food and Drug Administration
- Source type
- Primary regulatory
- Registry ID
fda-gram-peptides-warning-2026
Source usage
Linked from 36 pages
Compound
BPC-157
CompoundCJC-1295
CompoundGHK-Cu
CompoundIpamorelin
CompoundMK-677 (Ibutamoren)
CompoundSermorelin
CompoundTesamorelin
Video auditUnapproved Weight-Loss Drug 'Reta' Sold Online Despite Safety Concerns
Video auditSafety Concerns Over Doctors Prescribing an Experimental Weight-Loss Drug
Video auditUnapproved Weight-Loss Drug Sparks Black-Market Concerns
ComparisonBPC-157 vs TB-500
ComparisonCJC-1295 + Ipamorelin vs Tesamorelin
ComparisonCJC-1295 DAC vs No DAC
ComparisonMK-677 vs Ipamorelin
ComparisonRetatrutide vs Tirzepatide
ComparisonSermorelin vs Tesamorelin
Evidence curationBest Peptides for Growth Hormone Release
Evidence curationBest Peptides for Inflammation Research
Evidence curationBest Peptides for Injury Repair
Evidence curationBest Peptides for Muscle Recovery
Evidence curationBest Peptides for Skin and Anti-Aging
Evidence curationBest Peptides for Weight Loss
GuideFDA Enforcement Timeline: Major Actions on Peptides and Compounding
GuideFDA Warning Letter Tracker: Enforcement Actions Against Peptide Sellers
GuideHow to Evaluate a Peptide Supplier
GuideHow to Read a COA (Certificate of Analysis)
GuidePayment Processing for Peptide Businesses
GuidePeptide Business Compliance Guide: Labeling, Claims, COAs, and FDA Enforcement for RUO Sellers
GuidePeptide Category Explainers: How Every Compound Class on This Site Is Defined
GuidePeptide Terminology Glossary
Research hubCommunity Guidelines: What's Allowed and Not Allowed in Peptide Discussions
Research hubPeptide Community Hub: Reddit, YouTube, Telegram, and Discord Spaces
Research hubRUO Marketplace Risk Guide: How to Evaluate Marketplace Risk Without Buying
Research hubRUO vs Telehealth: How People Access Peptides
Research hubUser-Submitted Supplier Reviews: A Moderated Framework for Sharing Supplier Documentation Experiences
Research hubWhat Does 'Research Use Only' Actually Mean?
Interpretation boundary
What this record can and cannot establish
Inclusion in the registry is not endorsement. The record supports only the claims that fit its design, population, date, and scope. Company, media, and community records can document that a claim was made without proving the claim itself.