TL;DR: BPC-157 is a synthetic 15-amino-acid peptide derived from a protein found in gastric juice. It's one of the most-studied compounds in the tissue-repair research literature — but nearly all of that research is in cells and animals, not humans. This explainer covers
FAQ / Knowledge Base
TL;DR: Peptide research moves through distinct stages — in vitro, animal (preclinical), and human (clinical) studies — and each stage answers a different question with a different level of certainty. Knowing which stage a finding comes from is the single most useful thing for judging how much weight it deserves. When
Research News
TL;DR: "Microdosing" GLP-1 medications — taking smaller-than-standard amounts, often spaced further apart — has become one of the biggest trends in weight-loss and biohacking communities. Surveys suggest roughly 1 in 7 GLP-1 users now do it. But it's important to be clear-
Myth vs. Evidence
TL;DR: "GLP-1 drugs make you lose muscle" is one of the most-discussed concerns in weight-loss and biohacking communities. The evidence-based picture is more nuanced: GLP-1 medications do reduce lean mass, but this happens proportionally alongside fat loss — the way it does with
Study Breakdowns
TL;DR: A 2026 medRxiv preprint analyzed self-reported side effects from Reddit users taking unapproved retatrutide — and found the pattern differs notably from the drug's clinical trials. Where Phase 2 data were dominated by gastrointestinal effects, the Reddit reports most often described appetite increase, fatigue, increased energy,
Mechanism Explainers
TL;DR: A receptor agonist is a molecule that binds to a specific receptor on a cell and switches it "on," triggering a response. Many research peptides are described as agonists of one or more receptors. This article explains what that means, how agonists differ from antagonists, and