Here is how you reconstitute any peptide There is no universal formula for reconstituting peptides. The amount of bacteriostatic water you use depends on the peptide, the dose you're running, and 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. Bacteriostatic Water Bac Water by Hospira Mountainside Medical Tagged "Sterile Water 10 ml" Peptide Dosage Calculator (Reconstitution) Dosing reconstituting : r Retatrutide