Gold has a high biological compatibility and shows a long-lasting durability. This can be seen, among other things, in its use as inlays, i.e. dental fillings in dentistry. They last a very long time. And allergic reactions in connection with gold occur extremely rarely.
This is exactly why gold is also very popular in cosmetics. It binds up to three times its own weight in moisture, which is good for the skin.
As colloidal gold oil, it provides the skin with lasting moisture and promotes a shiny and radiant appearance. Gold also stimulates cell renewal and collagen production, which can reduce wrinkles.