Cells that require lots of energy have many mitochondria, e.g
10.1161/STROKEAHA.115.008686 Stroke 9 ChuH.HuangC.DingH.DongJ.GaoZ.YangX.et al (2016)
In late 2023, the FDA added more than a dozen peptides including both BPC-157 and thymosin alpha 1 to its list of substances that should not be compounded because the agency has identified potential significant safety risks. For BPC-157, the agency warned that the peptide could trigger an immune response

Introduction: Introduction: AOD-9604 is a synthetic peptide fragment of human growth hormone (hGH 177191) engineered to replicate hGHs fat-metabolism effects without altering IGF-1 or glucose levels. In preclinical research, it promoted lipolysis (fat breakdown) and reduced lipogenesis (fat storage) through receptor-independent mechanisms. AOD-9604 Fast Facts Class: Synthetic hGH fragment analog (Tyr-hGH 177191) Intended purpose: Stimulate fat metabolism while avoiding hGHs growth or glucose effects Mechanism: Increases fat oxidation, enhances lipolysis, suppresses lipogenesis Distinct from hGH: Does not activate the growth hormone receptor or raise IGF-1 Development stage: Completed Phase II trials
How Does Glutathione Support Mitochondrial Function
Treatment of symptomatic uterine fibroids with green tea extract: a pilot randomized controlled clinical study