The Lab

Preppin Peppers' research library. Reconstitution guides, a growing peptide reference database, and bench-ready calculators, all in one place. For research and educational reference only.

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The Lab

Reusable Auto-Injector Pens vs. Click-Dial Pens: What Actually Matters on the Bench

Spring-assisted auto-dispense pens and manual click-dial pens meter volume identically — the difference is delivery. How the two reusable mechanisms compare as bench hardware. Read more...
Sharps and Vial Disposal Basics

A plain-language reference on sharps containers, why needles are not recapped, and how used vials and sharps are safely contained and disposed. Read more...
Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen

Reusable pens for research reconstitution deliver consistent measured volumes from every vial — see how the Gansulin Metal Pen performs as lab hardware. Read more...
U-100 vs U-40 Syringes: What the Numbers Mean

A reference explainer covering what the U-100 and U-40 scales mean, the units-per-milliliter behind each, and why reading the wrong scale produces measuring errors. Read more...
Insulin Syringe Sizes and Gauges Explained

A plain-language reference to insulin syringe barrel volumes, needle gauge and length, and what the U-100 marking means. Read more...