Mix each in their own vial. Then you can draw both peptides in one syringe. There is a post that I read that said it advisable to pin the peptide about 30min to 45min before the HGH. For me, I don't know if it matters that much. Especially, if you only have a little. The dosage for the peptides should be about 2mcg to 3mcg per kg of body weight.