Safety
Every safety piece, newest first.
Are peptides legal? It depends on the type: FDA-approved prescription, research-use-only, cosmetic, and supplement peptides each follow different rules.
BPC 157 side effects are not established in humans — trials are lacking. What the animal data can and cannot tell you, plus the product and injection risks.
Do GLP 1 patches work? A skeptical look at OTC patches vs FDA-approved GLP-1 medications, and why transdermal delivery of large peptides is unproven.
Retatrutide side effects are mostly gastrointestinal and dose-related in trials. Retatrutide is investigational and not FDA-approved. Here's what's known.
An evidence-based safety review for research peptides — what the data shows on side effects, what 'research-use only' really means, FDA status, and red-flag patterns to watch for.
A class-by-class summary of peptide side effects — GLP-1 agonists, GH secretagogues, healing peptides, melanocortin agonists — with red-flag patterns that warrant stopping immediately.