Tool · Handling
Reconstitution calculator.
Enter how much peptide is in the vial, how much water you add, and a dose you already have in mind. It returns the concentration, the volume to draw, and where that lands on an insulin syringe.
Enter your own numbers. This does the arithmetic — concentration, draw volume, syringe units — it does not tell you what dose to use. We publish no doses or protocols.
Reverse — how much water for a target concentration
Reverse — what a draw you already measured contains
Uses the concentration and syringe scale set above.
What common draws hold at this concentration
The math & the units
- Concentration = peptide (mg) ÷ water (mL). Adding more water makes a weaker solution and a larger, easier-to-measure draw.
- U-100 insulin syringes read 100 units = 1 mL — the standard. U-40 (40 units = 1 mL) is mostly veterinary; check what's printed on your syringe, because reading a dose on the wrong scale is a classic, dangerous mistake.
- mg ↔ mcg: 1 mg = 1000 mcg. This tool keeps purity, salt, and water out of it — concentration is reported as labeled peptide mass per mL.
- IU is not convertible here. Some compounds (e.g., HGH) are labeled in international units, which are defined per substance — there is no universal IU↔mg ratio. Work from the labeled mass.
Measurement math only — not a dose, not a protocol, not medical advice. For technique, sterility, and storage see the reconstitution & handling guide; to judge what's actually in a vial, the COA guide. Most peptides sold this way are not approved for human use.