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Technique guides

How the techniques work

Everything else on this site reports what published research says. These pages describe how a technique works — the kind of thing a diabetes-education leaflet explains — so that someone who has never done it understands what each step is for.

Before you read

This guide explains how a technique works in general. It is not instruction for any specific compound. Talk to a licensed clinician before injecting anything.
  1. 01

    How subcutaneous injection works

    What the subcutaneous layer is, why peptides are injected there, how it differs from a muscle injection, and what it feels like.

  2. 02

    Reading an insulin syringe

    What a U-100 syringe is, why its scale is in units rather than millilitres, and how to read the gradations.

  3. 03

    What reconstitution is

    Why a peptide arrives as a powder, what bacteriostatic water is for, and why the water goes in slowly and the vial is never shaken.

  4. 04

    Injection site rotation

    Why the same spot used repeatedly causes problems, and a simple pattern for moving between sites.

  5. 05

    Storage and handling

    Refrigeration before and after mixing, light, how long a mixed vial lasts in general terms, and the signs a vial should be discarded.

Tool

Reconstitution calculator

Vial size, water volume and dose in; concentration, draw and syringe units out. The arithmetic the syringe and reconstitution guides describe — and only the arithmetic.

The arithmetic the syringe and reconstitution guides refer to is done by the reconstitution calculator. What any particular compound's research reports is on its profile in the library; how that research is graded and checked is on the methodology page.