But before we get into my personal experience with incorporating the Lightstim For Acne ($169) into my personal routine, let me explain a bit more about the benefits. LED, otherwise known as light emitting diode therapy, was originally developed by NASA to help with plant growth before being adopted by dermatologists, aestheticians, and other skin-care experts to treat cosmetic concerns. Blue light is used to treat acne, while red light helps promote anti-ageing.
Image Source: Lightstim