The U.S. Food and Drug Administration (FDA) is cracking down on companies marketing supplements that claim to counter the effects of the sun's ultraviolet rays.

These companies — marketing products called Advanced Skin Brightening Formula, Sunsafe Rx, Solaricare and Sunergetic — “are putting people’s health at risk by giving consumers a false sense of security that a dietary supplement could prevent sunburn, reduce early skin aging caused by the sun, or protect from the risks of skin cancer,”  says FDA Commissioner Dr. Scott Gottlieb said in an agency news release. “There’s no pill or capsule that can replace your sunscreen.”

The FDA instructed these companies to correct all violations associated with their products and review product websites and product labeling.