l carnitine injection in stomach before and after L-Carnitine is an amino acid that supports weight loss as it is a fat-burning supplement. L-Carnitine Push is a direct quick IV infusion procedure that can be done on a weekly Frontiers | Exogenous L-carnitine Administration

Neuroscience 210:296307 Paulino RR, Silva RF, Guevara MJP, Rodrigues EJD, Costa LS, Alves APDC, Teles AO, Rosa PV (2020) Dietary lipid level and source affect metabolic responses in hybrid catfish ( Pseudoplatystoma reticulatum Leiarius marmoratus )

This can also elevate ghrelin and suppress leptin, increasing hunger and cravings for high-calorie foods

Off-label uses or unregulated supplements may carry additional safety, quality, and effectiveness risks

Chemically induced rodent PD models produced by injection with MPTP and 6-hydroxydopamine demonstrate PD-like symptoms like bradykinesia, and administration of 10-50 mg catechin (both oral and intraperitoneal injection) improves locomotor behavior in these animals [115,116,139]