PepStack vs Ligand · Peptide Dose Tracker

PepStack is a reconstitution and dosing-math calculator and protocol scheduler for peptide researchers. CALCULATE WITH CONFIDENCE • Exact BAC-water volume, concentration, syringe units, and doses-per-vial • Supports U-100 / U-50 / U-40 / U-30 insulin syringes • Step-by-step reconstitution guide PLAN YOUR PROTOCOL • Build a weekly schedule and sync dose reminders • Log doses, track streaks, rotate injection sites • Reference library of common research peptides STAY ORGANIZED • Vial inventory with expiry and low-stock alerts • Optional Apple Health sync for weight & body-fat trends • Wellness journal and progress insights PepStack is an educational calculator. It is not medical advice and does not sell or supply any substance. Always consult a qualified professional. PepStack Pro is an auto-renewable subscription (monthly or annual). Payment is charged to your Apple ID; it auto-renews unless canceled at least 24 hours before the period ends. Manage or cancel in Settings. Pro unlocks unlimited protocols, dose logging, AI insights, and PDF export. Terms of Use (EULA): https://pepstack.co/terms Privacy Policy: https://pepstack.co/privacy

Ligand is a fast, private calculator and log for reconstituted peptides — built to show its work, not to tell you what to take. RECONSTITUTION & DOSE MATH YOU CAN CHECK Enter your vial mass, BAC water, and target dose — in mg or mcg, your choice — and Ligand lays out the concentration, the corresponding syringe volume, and the exact syringe units, with every step of the working shown. See the exact result and where it lands on a whole syringe mark. SAVE EVERY CALCULATION Save any calculation as a checkable record: the inputs you entered, the full derivation, and the result, frozen exactly as they were. Reopen it anytime, use it as the start of a new one, or share the whole working as plain text. FREE TO TRY — NO ACCOUNT The calculator, your saved calculations, and your log are free. No sign-up, no account, no paywall before you can check a number. A PRIVATE LOG Track your vials and your own schedule. Your data stays on your device — it's yours. PRO (optional) • Unlimited vials • Export & back up your records — CSV + JSON • Peptide Assistant — brief answers on kinetics and mechanism, with source links Available monthly, yearly, or as a one-time Lifetime purchase. Ligand does the math and keeps your record. It does not provide medical advice, diagnose, or recommend a dose. Always consult a qualified healthcare provider before any decision about a medication or compound. Privacy Policy: https://evelaina.com/ligand/privacy Terms of Service: https://evelaina.com/ligand/terms