doi:10.1016/j.pep.2011.05.012
Concentration = vial mcg / water mL Dose volume = target dose mcg / concentration U-100 units = dose volume mL x 100 Semaglutide 5 mg vial with 2 mL example A 5 mg semaglutide vial mixed with 2 mL gives a concentration of 2.5 mg/mL, or 2,500 mcg/mL
Ke T, Tinkov AA, Skalny AV, Santamara A, Rocha JBTda, Bowman AB, Chen W, Aschner M (2023) Epigenetics and methylmercury-induced neurotoxicity, evidence from experimental studies
Whether that is useful depends on diet, medical history, medications, tolerance and the reason for supplementation
If you're reconstituting something sensitive to preservatives, or you only need a single-use preparation, sterile water is usually preferred