Vendors sell kits of 10g of ghk powder, on AliExpress I can buy less. All things considered, the price per gram is the same. About quality, who knows for both?
So there is a bit of a debate on this, age dependent as well because from the age of around 20 your body produces less copper, so depending on what age you’re just putting in what you no longer produce. But I do take zinc just in case because copper deplete zinc.
Well. Using normal diabetes needles and just barely going into skin. But. Yes but in supper low amounts at targeted areas… (skin blemishes, deep wrinkles, small spot where veins show on nose). But this is on rare occasions not a daily or even weekly thing