What color of LED light is recommended for treating acne?

Blue LED light is recommended for treating acne due to its ability to target and eliminate acne-causing bacteria known as Propionibacterium acnes (P. acnes). When exposed to blue light, these bacteria produce porphyrins, which absorb the light energy and lead to a breakdown of the bacterial cell walls. This process reduces inflammation and helps to clear up active acne lesions.

Additionally, blue light therapy is non-invasive and can be combined with other skincare treatments for enhanced results. While red light is beneficial for reducing inflammation and promoting healing, it does not specifically target the bacteria responsible for acne, making blue light the more effective option for acne treatment. Green and purple lights have other specific uses in skin care, such as pigmentation correction and combination treatment, respectively, but they do not directly address the underlying bacterial component of acne.