Polyhydroxy Acids vs AHAs

What is PHA? Polyhydroxy acids are ingredients such as gluconolactone and lactobionic acid. They’re supposed to be as effective as AHAs, but less sensitizing. PHAs, also known as polyhydroxy acids, are the newest acid to take over ingredients lists and news feeds all over the beauty world. “PHAs (Poly-hydroxy acids) fall under the AHA family. They …