Estrogens also regulate GAGs in the skin, and losing these hormones results in dehydrated, itchy skin. Estrogenic loss also reduces the number of blood vessels in the skin, resulting in pale skin with a lack of nutrients traveling to the skinâs surface.2 In all, we get pale, thin and dry skin.
Joseph Black recognized magnesium as an element in 1755. It was isolated by Sir Humphry Davy (1778-1829) in 1808 almost 200 years after its discovery. He electrolysised mixture of magnesia (magnesium oxide, MgO) and mercuric oxide (HgO). Davy's first suggestion for a name was magnium but the name magnesium is now used.
Andreas Marggraf (1709-1782) A German scientist isolated Zinc from its minerals. He published his findings in On the method of extracting zinc from its true mineral, calamine â¦  in (1746). Read more about this and its history on the related link below.