President Obama has signed into law legislation banning synthetic drugs infamously dubbed "bath salts."

These drugs -- not to be confused with bath and body products like Epsom salt -- have been linked to a string of grisly attacks.

"Bath salts" are essentially cheaply-made super-charged speed that ramps users up like a mixture of cocaine and methamphetamine. When consumed, they make the user a danger to everyone, including themselves.

Makers of the drug have managed to circumvent previous bans by slightly altering the chemical formula.

The latest ban combats the problem by prohibiting not only the current "bath salts" compound but any versions that might be made the future.

"This law will close loopholes that have allowed manufacturers to circumvent local and state bans and ensure that you cannot simply cross state lines to find these deadly bath salts," Sen. Charles Schumer, one of the bill's sponsors, said in a statement.

Gail Banach, director of public education and communications at the Upstate New York Poison Center, agreed.

"Certainly there'll be new compounds," Banach said. "But if you build the higher wall, it makes it a little more difficult for the water to get over it."