While compounding pharmacies can "undoubtedly make better versions of these peptides," UC Davis' Knoepfler says, that doesn't resolve concerns that peptides, especially if taken at the wrong dose, could inadvertently promote cancer growth or trigger a dangerous immune response
Great experience with Vitastiir
Because of this targeted structure, it is discussed in research in the context of fat metabolism rather than the broader effects of full growth hormone
Pernicious anemia is an autoimmune disease that attacks and potentially destroys gut cells so that intrinsic factor is not present, which is crucial for vitamin B12 to be absorbed
Eric Topol of Scripps Research Translational Institute was more direct: "These peptides have no data to support their safety and efficacy." The clinical proponents argue that the FDA's safety concerns immunogenicity risk, impurity risk, organ toxicity are theoretically valid but speculative in practice