What about getting vaccines while on methotrexate
Injectable GHK-Cu is more powerful and cost-effective than topical, but topical serums (1-2% concentration) work well for facial skin when applied daily
As Alejandro Saldarriaga, head of applied research at DECIEM, explains, they support several aspects of healthy-looking skin rather than focusing on a single visible concern. And according to Dr Charlie Cox, longevity doctor at longevity hospital Reborne , the topical skin evidence is the most solid data when it comes to the effectiveness of GHK-Cu, as studies show an improvement in firmness, texture, tone and fine lines. Take the stats on the NIOD Copper Amino Isolate Serum 31:1, for example
When not to use it is just as important
Topical absorption is usually minimal, and these are generally considered safe