Intravenous (IV) glutathione injections have been surrounded with some controversy among medical practitioners, mainly because of concerns of safety unrelated to those of oral or topical products of glutathione
TB stands for TB-500 (thymosin beta 4)
These reactions include permanent scarring, skin deformities, cysts, severe infections, etc (1)
Pickart stated that GHK-Cu has a favorable safety profile, highlighting that there is no indication that it causes side effects in test subjects [2]: The molecule is very safe and no issues have ever arisen during its use as a skin cosmetic or in human wound healing studies. In a 2018 review based on new genetic data, he reiterated that all biological actions associated with GHK appear to be health positive. He pointed to over four decades of GHK research encompassing cell, tissue, and animal studies, also noting the peptides inclusion in commercial anti-aging and cosmetic products such as creams, liposomes, and dermal patches [1]