Choosing Syringes and Bacteriostatic Water for Peptide Work

Precision matters when working with milligram and microgram quantities. The wrong syringe graduation or an inappropriate diluent can introduce measurement error that propagates through an entire experiment series.

U-100 insulin syringes

Standard U-100 syringes assume 100 unit marks per 1 mL — so 1 unit equals 0.01 mL. Common capacities are 0.3 mL, 0.5 mL, and 1 mL. Smaller syringes offer finer graduations for tiny draw volumes; larger ones suit higher-volume sampling. Our peptide calculator converts between mL and IU automatically.

Bacteriostatic water vs sterile water

• Bacteriostatic water — multi-day use at 2–8 °C when accessed repeatedly.
• Sterile water — single-use or immediate aliquot-and-freeze workflows.
• Saline — occasionally specified; confirm compatibility with your peptide.
• Never use tap water or unfiltered laboratory water.

Bundling supplies with peptide orders

Peptides EU lists lab supplies — bacteriostatic water, syringes, and reconstitution essentials — alongside peptides so EU laboratories can consolidate shipments. One intra-EU parcel means one tracking number and no customs surprises.