All — Standard Reagents — Test Strips — Purity Test Kits — T-Shirts — Accessories — Drug Info Cards

Purity test kits are quantitative kits that can tell you how much active ingredient is in your drug sample, or how pure the sample is. Note that purity here means “percentage purity.” It does not mean “unadulterated.” You still may want to use a fentanyl test strip. Developed by Emanuel Sferios and Matthew Aragon.