Lets take a look at what the scientific evidence says
Signs that warrant evaluation include: pain radiating down the arm or leg persistent numbness muscle weakness worsening symptoms over time Imaging and a physical examination help determine the underlying cause of the problem
Not all vitamin boosters are created equal

Animal Research Context: Scaling from Rodents Preclinical studies with Dihexa and angiotensin IV analogues employed doses that ranged considerably depending on species, route, and outcome measured: Intravenous (IV) Administration Animal studies using intravenous dosing (which bypasses absorption barriers and achieves near-complete bioavailability) reported cognitive and neuroprotective effects at: 0.1 to 2.0 mg/kg in rodent studies (McCoy et al., 2013) Doses at the higher end of this range (12 mg/kg IV) produced robust behavioral effects For a 70 kg human, equivalent to 70140 mg total IV dose (crude extrapolation) However, direct extrapolation from rodents to humans is unreliable due to differences in metabolism, brain penetration, and receptor sensitivity Intraperitoneal (IP) Administration IP dosing (injection into the abdominal cavity, with slower absorption than IV) showed effects at: Up to 10 mg/kg in some studies Lower bioavailability than IV, requiring higher nominal doses for similar effects This route is not practical for human use Why Rodent Dosing Doesn't Directly Translate Rodent pharmacokinetics differ substantially from humans

Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline Solubility: 0.83 mg/mL (3.98 mM)
Most protocols are prescribed as subcutaneous injections you can do at home (we teach you exactly how), following a schedule customized by your provider