Another is in vivo confocal microscopy of fluorescent dextran (MW ~ 10 kDa) that when injected intravenously penetrated the intercellular junctions up the region of the tight junctions
Since most people draw multiple doses from a single vial, BAC water is the standard recommendation when you mix Retatrutide
The DAC version with extended half-life uses doses around 1-2mg weekly, while modified GRF (1-29) without DAC requires more frequent 100-300mcg doses
This protocol rapidly induced marked functional disability, in particular, a difficulty with maintaining body balance while rearing, an inability of the right forelimb to react (and thereby cuprizone-rats react only with one or no forelimb), and severely affected various brain areas [31]
American Heart Association Obesity BCD, Nutrition Committees of the Council on L, Cardiometabolic H, Council on Cardiovascular Disease in the Y, Council on Clinical C, Stroke C
Human clinical data is limited