Eye cosmetics with eyeliner as we know it today is not a modern application. It seems that in Egypt, about 4000 years ago, they used similar techniques using lead.
The difference lies in the fact of their collateral therapeutic action.
Chemical researchers have examined the effect of very small amounts of lead on the skin. The results showed that not only were these small amounts not harmful to the body, but they also activated the body's immune system through the production of nitric oxide.
At the same time, they also tested a chlorate of lead that we know the ancient Egyptians used to make. Its chain reactions in the body are equally beneficial. For example, it can help to balance blood pressure, thus supporting various ancient medical texts. Shouldn't we look more seriously for the therapeutic basis in the past?
