Because injections bypass the digestive tract, they may offer different absorption characteristics than oral routes, though the clinical significance of this is still being studied
(7) A single elevated reading after a supplement or an injection rarely means the same thing as a value that is still elevated on a repeat test weeks later
Things that might lead to dose changes include how bad the deficiency was, if there are nerve symptoms, if theres ongoing trouble absorbing nutrients, and how each patient responds
Evidence is promising but pre-clinical
Unless specifically directed by a prescribing clinician, stick with bacteriostatic water for consistency and simplicity
However, for mass spectrometric immunoassays (MSIA), IGF-1 is detected by the measurement of its intrinsic molecular mass and, therefore, alternate forms of IGF-1 that differ in mass can be readily differentiated