Light Therapy for Acne: Does Blue Light Help Treat Acne?

The beauty industry has overcome some leaps and bounds compared to where it was thirty years ago, the contrast can be evident when compared to where it was fifty years ago. Acne creams can be found left and right, even topical applications and treatments are abundant. Then there is the case of blue light treatment. There is a combination of blue + red light, but what is it exactly?