tirzepatide injection locations site thigh: guide to proper technique and placement Where to Inject Tirzepatide: Injection

Inositol and Choline Support Liver Function: Inositol and choline work together to transport fats out of the liver, promoting liver health and preventing fatty liver disease

ABC News (2022)

The next best method seems to be using iontophoresis patches that use a small battery-powered device to produce an electric current to drive the NAD+ under the skin and into the blood circulation

It has been reported that long-term oral carnitine treatment for 6 months in a patient with carnitine deficiency resulted in increased muscle strength, significant reduction in heart size, relief from cardiomyopathy, and partial repletion of carnitine levels in plasma and muscle with complete repletion of liver functions (71)