Peptides / Guides
Beginner peptide guides
The basic how-to questions, answered with what public health agencies, drug labels and journals actually say. Where nobody has published an answer, we say so instead of guessing.
New here? Read them in order if you are starting from zero: units, syringes, water, then mixing and injecting. Nothing here tells you what to take or how much. These pages do not ask for your name or email.

Measuring and the math
Get the numbers right before anything else.
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mg, mcg, IU and syringe units explainedmg, mcg, IU and syringe units. They are not interchangeable. -
How to read an insulin syringe0.3, 0.5 and 1 mL syringes, and why scales differ. -
How much water to add to a peptide vialThe math behind concentration, with a worked table.
Mixing and injecting
The technique steps that public health sources describe.
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How to reconstitute a peptide, step by stepThe sterile-technique steps, and what nobody has established. -
Bacteriostatic water vs sterile waterWhat is in each bottle and what the labels say. -
Subcutaneous injection basicsSites, rotation, one-time-use rule and sharps disposal.
Storage, quality and routes
What labels say, what testing can and cannot prove, and why most peptides are injected.
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How to store peptidesWhat approved labels say, and where the guidance stops. -
What lyophilized means, and what looks wrongThe freeze-dried cake, and what to check after mixing. -
How to read a peptide test report (COA)Purity vs content, endotoxin, and what a report cannot prove. -
Why most peptides are injectedWhy swallowing most peptides does not work well.
Quick reference
| Term | What it measures | Worth remembering |
|---|---|---|
| mg | Weight | 1 mg = 1,000 mcg |
| mcg | Weight | Write “mcg”, never “µg”, to avoid a 1,000-fold slip |
| mL | Liquid volume | 1 mL = 100 units on a U-100 syringe |
| Syringe unit | Liquid volume | 1 unit = 0.01 mL, whatever is dissolved in it |
| IU | Biological activity | No general conversion to mg |
Reported amounts for each compound, with source and evidence level, are on the A to Z peptide pages. See how we grade evidence.
Educational reference, not medical advice. This page describes what public health and regulatory sources say. It does not tell you what to take or do.