---
title: "Peptide Handling and Lab Report Guides | Primara Labs"
url: https://www.primaralabs.com/resources
source: Primara Labs, markdown mirror of the HTML page
---

# Handling guides, short and sourced.

Practical guides from the Primara Labs team on reconstituting a vial, reading a U-100 syringe, bacteriostatic water, storage and reading a Janoshik report, plus a glossary. Every figure in them cites its source. None of them suggests an amount, a frequency or a protocol for any compound.

Updated 24 September 2026

## Reconstitution

-   [How to reconstitute a lyophilized peptide vialMaterials, clean technique, adding water down the vial wall, swirling rather than shaking, and labelling the vial.Updated 24 September 2026](https://www.primaralabs.com/resources/how-to-reconstitute-a-peptide-vial)
-   [How to read a U-100 insulin syringeUnits to millilitres from 1 to 100, the three barrel sizes and their tick marks, U-40 versus U-100, and the common unit questions answered.Updated 24 September 2026](https://www.primaralabs.com/resources/how-to-read-a-u-100-insulin-syringe)
-   [Reconstitution calculatorConcentration, volume and syringe units from the numbers you enter. Arithmetic only.Tool](https://www.primaralabs.com/tools/peptide-calculator)

## Handling & storage

-   [Bacteriostatic water vs sterile waterWhat the benzyl alcohol does, how plain sterile water is labelled, and why multi-draw vials use bacteriostatic water.Updated 24 September 2026](https://www.primaralabs.com/resources/bacteriostatic-water-vs-sterile-water)
-   [Storing peptides: sealed, mixed and on deliveryLyophilized versus reconstituted, 2 to 8 °C, light and freezing, and what to do when the cold-chain parcel arrives.Updated 24 September 2026](https://www.primaralabs.com/resources/storing-peptides)

## Reading lab reports

-   [How to read a Janoshik reportThe task number and key, looking a report up on the laboratory's own page, and what identity, purity and endotoxin results each show.Updated 24 September 2026](https://www.primaralabs.com/resources/reading-a-janoshik-report)

## Glossary

-   [Peptide glossaryShort definitions of lyophilized, reconstitution, concentration, U-100, endotoxin, HPLC, MS, COA, batch and more.Updated 24 September 2026](https://www.primaralabs.com/resources/peptide-glossary)

Supplied for laboratory research use only. Not for human consumption. Nothing in these guides is medical advice. Laboratory reports for Primara Labs batches are on the [batch reports page](https://www.primaralabs.com/coa).