Cat's claw is promoted for numerous conditions, including arthritis (including osteoarthritis and rheumatoid arthritis), Alzheimer's disease, viral infections, boosting immune response to vaccination, and reducing side effects of chemotherapy
But if you just want the fast answer, most research shows GHK-Cu to be the more broadly studied copper peptide for both hair and skin
Because your body does not readily store excess amounts, toxicity from B12 is very unlikely, even at the higher doses used in injections
These include botany, morphology, microscopy, high-performance thin-layer chromatography (HPTLC), high-performance liquid chromatography (HPLC), liquid chromatography with mass spectrometry (LC-MS), inductively coupled plasma mass spectrometry (ICP-MS) for heavy metals testing, spectrophotometric methods (UV-Vis, FTIR), testing for microbial contamination, and other standard scientific methods
You may also use GHK-copper as a supplement for Skin Biology cosmetics
A compound that has been degraded through poor storage, inadequately purified, or incorrectly dosed produces results that do not reflect what the research literature documents