Reconstitute peptides precisely. Then never do the math again.
The most accurate peptide reconstitution calculator on the web — paired with a mobile app that remembers every protocol, dose, and reminder so you don't have to.
Your peptide protocol, in your pocket.
The web calculator gets you a number. The app gets you results, month after month, vial after vial.
- Save unlimited protocolsEach calculation becomes a reusable protocol — vial, water, dose, syringe, schedule. Auto-recalls every detail.
- Smart dose remindersNotifications that know your cycle. Snooze, skip, or log — tracking takes one tap.
- Track sites and cyclesRotate injection sites automatically. See cycle length, vial usage, and per-dose cost trend over time.
- Private by designYour protocols never leave your device unless you opt in. End-to-end encrypted sync, full export anytime.
Stop running your protocol
on memory.
A free calculator is a great start. PepSync is the rest of the protocol.
PepSyncDedicated calculators for high-intent protocols.
Focused pages for vial concentration, dose volume, syringe units, and protocol tracking.
Choose the calculation, then save the setup.
Generic peptide tools for reconstitution, dose volume, concentration, and unit conversions when you know the calculation you need.
“Saved my Sunday morning. Used to redo this math every single vial. Now my phone just reminds me.”
“The injection-site rotation alone is worth it. I was double-dosing the same spot for weeks before.”
“Finally a calculator that gets U-50 syringes right. I send every new patient here before their first injection. The result screen is gorgeous.”
Read up before you reconstitute.
Plain-English walkthroughs on reconstitution, storage, syringes, and dosing — written so you get it right the first time.
How to reconstitute peptides correctly
A careful step-by-step guide to peptide reconstitution, BAC water, vial handling, storage, and common dosing-prep mistakes.
What is bacteriostatic water?
Understand BAC water, sterile water, preservative differences, multi-dose vial handling, and when to follow specific diluent instructions.
Peptide storage basics after reconstitution
Learn the practical storage basics for peptide vials: temperature, light, dates, handling, and when to follow product-specific instructions.
Things people ask before they start.
Answers to the questions we hear most about reconstitution, dosing, and how PepSync handles your protocols.
Is this calculator accurate?+
What's the difference between U-100, U-50 and U-40 syringes?+
Do you save my calculations?+
Is PepSync free?+
Are peptides legal?+
Can I export my data?+
Your peptide protocol deserves
more than a sticky note.
Download PepSync. Save the calculation you just ran. Get on with your life.