Legal & Regulation
Are peptides legal in 2026?
FDA regulations, the research chemical loophole, state-by-state variations, and what the Peptide Sciences shutdown means for the market.
Sourcing & Safety
Peptide Sciences shut down: what happened and what to do now
The largest US research peptide vendor closed in March 2026. What we know, what it means, and how to find a trustworthy alternative.
How to source quality peptides safely
What to look for in a peptide vendor, how to read a Certificate of Analysis, and red flags that should send you running.
Peptide Profiles
Best peptides for injury recovery: a research-backed comparison
BPC-157, TB-500, GHK-Cu, and more — what the evidence supports for tendon repair, muscle healing, and soft tissue recovery.
BPC-157: complete research guide
Mechanisms of action, animal vs. human evidence, dosing protocols, and what the research actually supports for this widely-discussed healing peptide.
TB-500: benefits, research, side effects & legal status
How TB-500 differs from BPC-157, what the research shows for tissue repair, and what you need to know about its regulatory status.
Weight Loss
Protein timing on GLP-1 medications: why when you eat matters as much as how much
Your body can only use so much protein at once. On semaglutide or tirzepatide, the timing of your protein intake becomes the difference between preserving muscle and losing it.
The GLP-1 appetite cycle explained: what happens to your hunger each day after injection
Day-by-day guide to appetite changes, side effects, energy levels, and practical eating strategies across the weekly semaglutide and tirzepatide injection cycle.
GLP-1 peptides: how they work for weight loss
Semaglutide, tirzepatide, and retatrutide — mechanisms, efficacy data, and the science behind the biggest pharmaceutical story of the decade.