The PDO in humans is a single-domain enzyme, while bacterial PDOs, such as CstB of Staphylococcus aureus , are often fused to a sulfurtransferase (rhodanese) module
[1] In terms of efficacy, ipamorelin has similar or higher potency compared to GHRP-6 in various animal models, but it stands out due to its unique lack of effect on other hormones such as prolactin, follicle stimulating hormone (FSH), luteinizing hormone (LH), PRL, and thyroid stimulating hormone (TSH)
Essential elements like zinc and selenium, which are necessary for the generation of the thyroid hormones and triiodothyronine (T3), are absorbed in the gut
People may take oral supplements or receive clinician-directed treatment for different reasons, but the evidence, safety considerations and possible interactions can vary according to the product, dose and route of administration