How Dosii Works

Three inputs. One answer. No account required.

1

Enter your vial and dose

Tell Dosii how much peptide is in your vial (mg), how much you want to inject per dose (mg or mcg), and pick your syringe size. Dosii suggests the best BAC water amount so your dose lands on a clean syringe tick.

Calculator showing vial size, dose, and water suggestion inputs
2

See the calculated syringe line

An animated syringe presents the calculated line for your selected syringe (30u, 50u, or 100u). Below it, a card shows the mathematical result in units and mL.

Syringe visualization showing a calculated line with a result card
3

Know your cost per dose

Enter what you paid for the vial. Dosii shows how many doses you get and what each one costs. That's it. Open the app, get your answer, close it.

Cost breakdown showing doses per vial and cost per dose

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