Guides

IGF-1 side effects, from the approved drug mecasermin to the research analogs LR3, DES and MGF: hypoglycemia, tissue overgrowth, cancer-pathway concerns, and honest evidence gaps.

Subcutaneous vs intramuscular injection explained: the skin layers, needle angle, length and gauge, absorption, sites, and which peptides suit each route.

Bacteriostatic water vs sterile water vs SWFI: the difference is the preservative. Which diluent to use for multi-dose peptide reconstitution, and why.

Peptide half-life is one of the most quoted — and most misunderstood — numbers in the research literature. Half-life is the time it takes for the amount of a compound in circulation to fall by half. It is a measure of how quickly the body clears a molecule, and it quietly determines how a peptide…

Learning to read a COA — a Certificate of Analysis — is one of the most useful skills for anyone evaluating research peptides. A COA is the one-page lab report a manufacturer issues for a specific batch of material. It tells you what the vial is supposed to contain, how pure it is, how much…

What endotoxin means on a peptide COA: LPS basics, the LAL and rFC tests, what EU/mg means, endotoxin limits (K/M), and how to read it alongside HPLC purity and MS identity.

What is a peptide? A plain-language guide to peptide bonds, the peptide-vs-protein size convention, how peptides are named, and why molecular weight matters for handling.

Lyophilization (freeze-drying) turns a peptide solution into a stable dry powder. Here is how it works, why peptides need it, and how to handle the cake.

The milligram on a peptide vial is gross powder mass, not pure peptide. Net peptide content and salt form explain the gap and change your concentration.

An honest, well-sourced look at BPC-157 and TB-500 side effects — why human safety data is so limited, what is theoretical versus anecdotal, and why supply quality is the most concrete risk.