Certain factors like cloudy days or having dark skin can reduce the amount of vitamin D that your skin generates. However, Lumivol you can also get vitamin D from certain foods or dietary supplements. Consult your health care provider if you should take vitamin D supplements. Limit your time to the sun to protect your skin from premature wrinkles, damage and disease. "Smart behavior against the sun is a good thing," says Katz. And if you see a suspicious spot on the skin, Kramer advises you to make sure it is checked.