L-carnitine injections may also help increase mitochondrial function, which plays a key role in disease and healthy aging
LuoXRenXHuangSLiYXueQShiDet al
The article notes that intravenous, intramuscular, oral, and inhaled forms are not equivalent, and that oral glutathione is poorly absorbed from the intestine
Hsieh CY, Su CC, Shao SC, Sung SF, Lin SJ, Kao Yang YH, Lai EC
Under normal conditions, platelets collect excess 5-HT from the intestinal mucosa through SERT on their surface, preventing it from accumulating and contributing to the termination of its enteric activity [276]
There are however a number of FDA-approved treatments for skin lightening on the market that are much more suitable and safer than Glutathione