The Vitamin Shop stocks a fantastic range of Vitamin A, B and E supplements. Vitamin A is essential for healthy eye sight and skin health. Symptoms of deficiency may include poor eyesight, increased likelihood of infections and a weakened immune system. Healthy Vitamin A levels are important for the maintenance of healthy skin and eye function. It is a vital nutrient for immune system function and Essential for normal functioning of the retina, in particular visual adaptation to darkness.