PepKit

Know exactly what to draw

Enter your vial size, your BAC water, and your dose. PepKit shows the units to draw on your insulin syringe, live as you type, with a syringe visual you can read at arm's length. Concentration, volume, and doses per vial are always in view, and warnings appear when a draw won't fit your syringe or is too small to measure accurately.

Your schedule, including split dosing

Weekly, daily, or every-N-days protocols with quiet shot-day reminders that never show your dose on the lock screen. Split a weekly dose into two or three evenly spaced smaller shots. It's a first-class feature, not a workaround.

Vials that track themselves

Each logged shot subtracts from your active vial. See remaining mg, doses left at your current dose, cost per dose, and days since reconstitution.

Rotation, levels, and trends

• Six injection sites with a least-recently-used suggestion
• An estimated relative medication level chart, built from your logged shots. Free.
• Weight trend with a 7-day moving average. No projections, no judgment.

Any compound

Common GLP-1s and peptides are built in. Add any custom compound with a name and an optional half-life, and everything in the app works with it instantly.

Your data stays yours

No account. No server. Everything lives on your phone with an automatic on-device backup and one-tap export. Delete the app and your data goes with it.

PepKit is an informational calculator and diary. It does not provide medical advice, does not recommend doses or schedules, and is not a substitute for guidance from your healthcare provider. Always confirm your calculations and follow your provider's instructions. PepKit is an independent app from Lavai Labs and is not affiliated with any pharmaceutical company.