This interaction with the NO system is part of why BPC-157 appears in gut health research as well as musculoskeletal research
doi: 10.1016/j.molmet.2020.101102 59 UccellatoreAGenoveseSDicembriniIMannucciECerielloA
The most clear data from proper randomized trials shows, no, the drugs don't work if you don't take them
Randomized clinical studies in rodents and older adults show that glutathione acts in concert with the independent actions to two key precursors, glycine and and cysteine, to improve an array of biomarkers associated with the hallmarks of aging
The mechanism underlying carnitine's anti-aging effects involves multiple pathways: restoration of mitochondrial cardiolipin content and membrane integrity, enhancement of fatty acid oxidation to reduce lipotoxic stress, reduction of protein oxidation and carbonyl formation, improvement of calcium homeostasis and cellular signaling, and activation of stress resistance pathways that promote cellular resilience
Other frequent side effects include fatigue, dizziness, and a general feeling of tiredness