Rankings
The Peptide Index™: August 2026 rankings update
Apex Peptides holds the top position; Cascade Research Group drops 17 points after failed verification; BioRegen enters the top five.
News
Industry developments, regulation, enforcement, market moves, and research announcements — tracked as they happen.
FDA updates guidance on peptide compounding: what changes and when
The August guidance clarifies bulk-substance eligibility and signals enforcement priorities for the next year.
RegulationNew study explores oral delivery of GLP-1 peptides
Absorption enhancers push oral bioavailability past thresholds previously considered impractical for large peptides.
Research
Major lab raises concerns about peptide purity industry-wide
An analytical laboratory serving the research-chemical sector reports rising failure rates across client samples.
IndustrySemaglutide content verification: 2026 mid-year testing summary
Seven semaglutide specimens tested this year: six verified, one 14% under label.
Lab InsightsForum roundup: the reconstitution questions our community answers best
The community’s highest-signal threads this month, with the claims checked against published stability data.
CommunityCommunity testing patterns: what 400 user reports tell us about fulfillment
Aggregated consumer reports show delivery times improving — and two companies driving most complaints.
CommunityState pharmacy boards begin coordinated action on gray-market GLP-1 sales
Six states announce parallel enforcement; more expected to follow.
RegulationThe Peptide Institute Weekly
Research. Testing. Regulation. No hype.
One email a week: new study summaries, the latest independent lab results, ranking movements, and regulatory developments that matter.
- New research, summarized in plain English
- Independent lab results as they publish
- Score and ranking movements