Vitamin A - Is also known as Retinol or Retinly. Preformed vitamin A is derived from plant or animal products. The two main forms of vitamin A in the human diet are preformed vitamin A (retinol, retinyl esters), and provitamin A carotenoids such as beta-carotene that are converted to retinol. 

Vitamin A stimulates the production of white blood cells, takes part in the maintenance of healthy endothelial cells and regulation of cell growth. These properties help to improve scalp health, strengthen hair follicles and help in the promotion of  hair growth.

Other benefits: It is important for normal vision, the immune system, and reproduction. It also helps the heart, lungs, kidneys, and other organs to work properly.