What is the primary use of blue LED light?

The primary use of blue LED light is in acne treatment. Blue light therapy targets the specific bacteria that contribute to acne, known as Propionibacterium acnes. By emitting a wavelength of light that is effective in killing these bacteria, blue LED light reduces the occurrence and severity of acne breakouts. This targeted approach helps to clear existing blemishes and prevents new ones from forming.

While other uses of LED therapy exist—for instance, certain wavelengths can promote collagen production or reduce redness—the distinctive capability of blue light to effectively combat acne makes it the most recognized and researched application in dermatological treatments. This makes blue LED light a valuable tool in managing acne-prone skin, differentiating it from other treatments that may focus on different skin concerns.