Guides

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.

Why lyophilized peptide tolerates shipping, where the real degradation risks are, and a practical checklist for what to inspect when your vials arrive.

Glass vs plastic for storing peptide solutions: how surface adsorption causes losses, the material tradeoffs, and how to limit them.

Why some peptides are light-sensitive, how amber vials and dark storage protect them, and the photostability principles behind it.

TRT side effects explained from the evidence: erythrocytosis, fertility, cardiovascular signals from the 2023 TRAVERSE trial, prostate considerations, and monitoring.

How much BAC water for a target concentration? It is one division: water volume = vial amount divided by desired mg/mL. Worked examples, syringe math, and pitfalls.

The six most common peptide reconstitution mistakes — shaking, wrong diluent, jetting onto the powder, bad math, contamination, and storage slips — and how to avoid each.