By Tom O’Brien, The Associated Press Chemical peel removes some of the chemicals that cause sunburn and other skin problems, but not all of them.
Chemical peel removes most sunscreen-related compounds in most products, including many sunscreen lotions, sunscreens and other sunscents, but some skin-care products may contain a chemical that may not be fully removed.
That chemical is referred to as a sunscreen chemical.
In a recent study published in the journal Science, scientists at the University of Southern California examined sunscreen ingredients from nearly 1,400 sunscreen products sold by U.S. brands.
They found that almost 90 percent of the products tested contained chemicals linked to sunburn or sun damage, but only about 15 percent contained enough information to determine if the chemical had been removed from the product.
Only about 1 percent of sunscreen products contained the chemical in a way that was deemed safe, said study co-author Dr. Anneliesa Pizzuti, a dermatologist in Los Angeles.
The remainder contained no information about the chemical.
The chemical peel has been in use since the late 1800s.
It was initially marketed as a skin-whitening agent, but is now commonly used for other skin-applying applications.
In the U.K., it has become popular for facial creams and other products.
“We know that chemical peel is effective for removing sunburn-causing compounds, but we know very little about how the chemicals work and how they affect the skin,” said study researcher Dr. Mark Coyle, a research fellow at the department of dermatology at the U-M School of Medicine.
He said the chemical peel also could have negative effects on the skin, especially on people with sensitive skin.
“The skin may be able to absorb some of these compounds but not remove all of these,” Coyle said.
Pizzuti said she thinks the chemical is being used incorrectly, and that the chemicals are not being removed properly.
“If it’s just about sun protection, then the skin is going to absorb the chemicals anyway,” she said.
Coyle said it is possible that chemical peels, which have become more common in recent years, are not working for everyone, but there are some common complaints about them.
“Many people don’t want to remove these, but a lot of people think that they are not a good thing to do,” Coyles said.
“I think the general public is probably unaware of the benefits of using chemical peeling.”
Pizzutis research was funded by the National Institutes of Health.