ghk cu glutathione iv therapy benefits of iv on skin Glutathione IV Therapy: What You Need to Know-pleasanthillsarboretum Copper peptide GHK-Cu - Wikipedia

proposed a vascular normalization theory in which a judicious intensity of anti-angiogenic therapy could result in an equilibrium between anti-angiogenic and pro-angiogenic signals within the TMEvascular normalization statusand enable efficient delivery of oxygen, drugs, and anti-cancer immune cells into the tumor, rather than inducing excessive destruction of vessels and intratumoral hypoxia 35,36

Zhu XJ, Lin YJ, Chen W, Wang YH, Qiu LQ, Cai CX, Xiong Q, Chen F, Chen LH, Zhou Q, Li JH (2016) Physiological Study on Association between Nicotinamide N -Methyltransferase Gene Polymorphisms and Hyperlipidemia

A vial can pass every visual inspection and still be significantly degraded

Still it could be part of the problem in your situation

They did say that people with PA had to have injections, so I thought I would be fine, so my crafty GP got round it by saying I did not have PA, but now it seems I do