I get asked questions about this subject a lot. Here's a simple explanation: If you have a 10mg vial of Retatrutide: If you add 1cc (100 units) of water.. Each .1 (10 How Much BAC Water for 10mg Retatrutide Guide for Proper Reconstitution BetteryouRx RECONSTITUTION CHEAT SHEET. Peptide reconstitution is often overcomplicated, but at its core it's just basic concentration math how much compound is in the vial relative to how much liquid you add determines how Recently just started Reta, i need to make sure i mixed it right. 10mg of Reta, & i only had a small syringe so i did 100 units x3 of bac water.