Tanning accelerators, such as lotions or pills that contain the amino acid tyrosine or its derivatives, do not work and may be dangerous. Marketers say these products stimulate the body's own tanning process, but most evidence suggests they don't work.

Do tanning accelerators really work?

In fact, according to the American Cancer Society, Tanning accelerators, such as those formulated with the amino acid tyrosine or tyrosine derivatives, are ineffective … evidence suggests they don't work. FDA considers them unapproved new drugs that have not been proven safe and effective.

Are Self Tanning pills Safe?

What about sunless tanning pills? Sunless tanning pills, which typically contain the color additive canthaxanthin, aren't safe. When taken in large amounts, canthaxanthin can turn your skin orange or brown and cause hives, liver damage and impaired vision.