The product offers an alternative for patients worried about the side effects of oral isotretinoin (Accutane), which requires that they be monitored through regular blood tests. It's also designed to offer a choice for those whose skin is irritated by common treatments, such as Retin A, which causes drying and redness; or benzoyl peroxide, which can overly dry the skin; or those for whom antibiotics don't work well, said Dr. Alan Shalita, a dermatologist at the State University of New York Downstate Medical Center in Brooklyn.

ClearLight, made by an Israeli firm, Lumenis Ltd., makes a non- issue out of antibiotic insensitivity. However, Shalita said it may turn out to be even more effective when applied in conjunction with other acne-fighting products, such as antibiotics, Retin A and related products or benzoyl peroxide.