Acne: Blue light directly affects and kills the bacteria (i.e., Cutibacterium acnes) that are responsible for producing acne. It also "targets cells that (over)produce sebum or oil and decreases ...
how can I get rid of back acne, once and for all? While you won’t solve those pesky pimples overnight, there are some great treatment options to keep on hand. Of course, if your acne is severe — ...