Peptide Guides & Tools: Reconstitution, Syringe Units and Dosing Basics

Free guides and tools for research peptides: how to reconstitute, read a syringe, store vials and understand a protocol, plus calculators and a syringe practice simulator.

Guides

Beginner's Guide to Research Peptides: What peptides are, the main families, and how to read a protocol without getting lost.
How to Reconstitute Peptides: Step by Step: Mix a freeze-dried vial correctly, choose the water volume, and work out the concentration.
Syringe Units Explained: U-100, mL, mg, mcg and IU: Convert a dose to the marks on an insulin syringe and avoid the classic unit mix-ups.
Peptide Storage and Handling: Powder, Solution and Travel: How to keep peptides stable before and after mixing, and how to spot a vial gone bad.
Titration and Cycling: How Peptide Protocols Are Structured: Why protocols start low, step up in phases, and often include breaks.
How to Read a Peptide Certificate of Analysis (COA): What purity, identity, endotoxin and content figures mean, and how to spot a COA that proves nothing.

Tools

Dosage Calculator: Vial size, water and dose in; mL and syringe units out, plus doses per vial.
Syringe Simulator: See the plunger line on a syringe, then test yourself with practice problems.
GLP-1 Dose Tools: Semaglutide and tirzepatide mg to units, pen doses left and discard dates, missed-dose rules and titration.
Peptide Glossary: Units, mcg, IU, reconstitution and lab-report terms in plain language.
Peptide Storage Lookup: Storage before and after mixing for each peptide, and whether the data is from a label or just convention.
Blend Calculator: Per-peptide doses for multi-peptide blends.
Research Community: Moderated, pseudonymous discussion of studies, lab technique and tracking. Cite sources.
Regulatory Status Tracker: Which peptides are FDA approved, off Category 2 or under review, with dated sources.
Peptide Dosage Chart: Protocols for 100+ peptides, searchable by name and goal.
Cycle Planner: Lay a schedule out week by week and save it.
Stack Checker: Check 2 to 4 compounds for overlapping mechanisms, known cautions and same-syringe mixing.
Peptide Tracker: Log vials, doses and injection sites, with calendar reminders.
Bloodwork Analyzer: Check lab results against reference ranges.
Fitness Calculators: TDEE, macros, body fat and one-rep max.

Crestigen is an educational research reference. Nothing here is medical advice; many of these compounds are not approved for human use. Talk to a licensed clinician before using any substance.