The yellow skin tint is most noticeable on the hands and soles of your feet where there is little underlying tissue between the skin and bones. If the carotene supplement is discontinued, the skin will lose the yellow tint. Your body uses vitamin A for good night vision and for maintaining the health of your epithelial cells. These cells are found in skin as well as lining your respiratory tract and gastrointestinal tract. Research has found that persons who have an adequate intake of vitamin A have a lower incidence of epithelial cancers.
Epithelial cells line the lungs as well as the gastrointestinal tract, urinary tract and vagina.
Research has not advocated megadosing vitamin A to prevent cancer though. A new Finish research project showed that smokers increased their rate of cancer if they took Vitamin A supplements. Stresstabs by Lederle are vitamin B complex, C , D and E pills. A content of multivitamin supplements to a maximum of 1,000 RE to limit the possibility of vitamin A toxicity. I would suggest, you discontinue your vitamin A supplements and try eating bright orange or dark green leafy vegetables for vitamin A. Liver is also an excellent source.