does l carnitine injection work Maximize Your Weight Loss Journey with Semaglutide and L-Carnitine Injections Carnitine: the claims and why

GPX1-4 and GPX6 use selenocysteine as the active center to catalyze the reduction of H 2 O 2 or organic hydroperoxides to water or corresponding alcohols, thereby reducing their toxicity and maintaining redox balance

That broader scope may be relevant when KPV is directly connected to the research question

Understanding Insulin-like Growth Factor-1 Insulin-like growth factor-1 (IGF-1), formerly known as somatomedin or somatomedin C, has a single chain 70-amino acid polypeptide cross-linked by 3 disulfide bridges. Although IGF-1 provides several benefits similar to insulin such as lower blood sugar levels, the key difference is that insulin mediates mainly a metabolic response, whereas IGF-1 mediates growth-promoting effects (Source)

For example, zinc and copper team up in the activity of superoxide dismutase, while selenium supports the function of glutathione peroxidase, another vital antioxidant enzyme