Since both stimulate GH through the GHRH receptor, combining them does not provide a fundamentally different mechanism it primarily increases total GH stimulation
However, until larger controlled studies show measurable and reproducible improvements in fertility, I do not feel that these supplements are worth the money or the risk of potentially negative side effects
Vitamin B12 injections are given intramuscularly for those with a B12 deficiency related to age, pernicious anaemia, or low levels caused by a vegan or restrictive diet without supplementation
Active Cancer: Avoid peptide therapy in the presence of active or hormone-sensitive cancers, as growth factors may influence tumor metabolism
Other causes are conditions affecting the stomach or small intestine, such as Crohns disease, operations such as gastrectomies (which involve removal of part of the stomach), and certain medications