Step-by-step for first-timers, plus blends, units-to-dose, premixed liquids, reverse solving and BAC water. See exactly where to draw on your syringe, catch mistakes before they happen, and plan and price your whole cycle.
I buy from these trusted vendors — third-party tested, consistent batch to batch, and I order from them myself. Code DPRO at checkout.
Answer each question. The next one opens when you're ready.
One compound per vial: powder you mix, or a liquid that comes premixed.
See exactly how much of each peptide is in every draw.
Enter the dose you want for one or more peptides. Leave the rest blank and they fill in from the blend's ratio. If your numbers can't all be hit with one draw, we'll show you why and what you'd actually get.
Already mixed? Enter what's in the vial and how many units you draw, and see exactly what dose you're getting.
Tell us what you're trying to figure out. We'll only ask for what's needed.
Already a liquid, like L-carnitine, B12, NAD+ or glutathione. Dose by amount, or see what's in the volume you draw.
Haven't mixed yet? See how every water amount plays out, then pick the one that puts your dose on a clean, easy-to-read mark.
Strength = amount in the vial ÷ water added. Draw volume = dose ÷ strength. On a U-100 insulin syringe 1 mL = 100 units, so units = draw volume × 100. The calculator also checks that your draw lands on a mark you can actually read.
This calculator is an educational tool only and is not medical advice. Presets fill in what's in a vial, never a dose. Make dosing decisions with a qualified healthcare professional. Peptides may be legally restricted where you live. Double-check every number against your vial label.
Quality and purity are everything with peptides. These are vendors I trust and personally work with. Codes below save you money — and yes, some are affiliate links that support the channel at no extra cost to you.
Disclosure: some links above are affiliate or referral links. Always verify a vendor's testing and purity standards yourself. Nothing here is medical advice — see the disclaimer above.