However, if the melanocyte stem cells are damaged or depleted, the reversal of grey hair becomes much harder
However, as reassuring as all of this is, there are a couple of things to remain mindful of: Copper toxicity Because GHK-Cu contains copper, it does pose a potential risk of copper toxicity,12 the symptoms of which include abdominal pain, vomiting, chest pain, chills, cough, fever, general weakness, anemia, burning sensations, tremors, and a metallic taste in the mouth.13 The risk is small, as the concentrations of copper in the peptide are typically well within safe parameters, but its good to be aware of it
It is short-acting, only staying active in the body for about 8 hours
doi: 10.1158/2326-6066.CIR-13-0158 117 LinTWLinYTHuYCYuHHChiangBL
How Long Does Glutathione Take to Show Results for Dry Skin
In addition, a mitochondrial bilirubin oxygenase has been identified that in vitro degrades bilirubin to a variety of products ( 238 )