Which type of light therapy is known for reducing acne bacteria?

Blue light therapy is specifically recognized for its effectiveness in reducing acne bacteria, primarily due to its ability to penetrate the skin and target the sebaceous glands where these bacteria thrive. The wavelengths of blue light are particularly effective at killing P. acnes, the bacteria responsible for acne, without causing damage to surrounding skin tissues.

This type of therapy has become popular in treating acne as it helps decrease inflammation and promotes clearer skin. It operates by inducing a photodynamic effect on the bacteria, leading to their destruction and helping to prevent future outbreaks.

In contrast, red light therapy, while beneficial for reducing inflammation and promoting skin healing, does not have the same antibacterial properties specifically targeting acne. Green and yellow light therapies have different applications, focusing on pigmentation issues and redness reduction, respectively, rather than directly combating the bacteria that cause acne.