best time to inject l carnitine should you take before or after workout should i take l carnitine before or L-carnitine benefits, uses & dosage:

Fecal excretion of total carnitine was less than 1% of the administered dose.10 After attainment of steady state following 4 days of oral administration of levocarnitine tablets (1980 mg q12h) to 15 healthy male volunteers, the mean urinary excretion of levocarnitine during a single dosing interval (12h) was about 9% of the orally administered dose (uncorrected for endogenous urinary excretion)

usage rate: 10%

B vitamins are water-soluble, so its difficult to overdose on them because your body will flush out the excess

Tissue tropism occurs when a virus's attachment proteins interact only with receptors on specific cell types