CJC-1295 (DAC) Dosage Calculator

Reconstitution math for common vial sizes. A 5 mg vial with 2 mL bacteriostatic water gives you 2,500 mcg per mL. For a 1,000 mcg dose, pull 40 units on a standard U-100 insulin syringe. For 2,000 mcg, pull 80 units. A 2 mg vial with 1 mL BAC water gives 2,000 mcg per mL; a 1,000 mcg dose is 50 units. Timing matters less with DAC than with the no-DAC form. You don't need to fast before injection. Evening dosing before bed is preferred because it complements natural nocturnal GH secretion, but the sustained release means missing that window by a few hours changes nothing meaningful. The thing most beginners miss is vendor verification. DAC synthesis requires maleimido-group bioconjugation chemistry that is far more complex than standard peptide production. Community mass spec testing has documented cases of no-DAC product sold as DAC. Request LC-MS/MS certificates of analysis; DAC molecular weight runs roughly 5.9 kDa versus 3.4 kDa for no-DAC. If your weekly injection doesn't hold IGF-1 raised for seven to nine days (testable with a mid-week blood draw), you may have the wrong compound.