Light Therapy for Acne: What to Know, According to Dermatologists
While red and blue light therapy are going to be the two biggest players in the acne-fighting game, you may occasionally come across
“Purple light penetrates the skin barrier deeply, helping kill acne-causing bacteria while also reducing the appearance of acne-related scars,” explains Dr. Dendy.Green is the opposite of red on the color wheel, so it only makes sense that green light is a viable option for anyone dealing with really red, angry pimples. Dr. Dendy says, “Green light has been shown to help with acne by calming the skin, acting as an anti-inflammatory, and by lightening hyperpigmentation.
It’s also going to work better on certain types of pimples than others. “Red light is a helpful adjuvant for someone with a lot of redness and inflammation,” says Dr. Hibler, noting that it works well on red bumps and cysts. “Light therapy is not as effective for comedonal acne, which is caused by blocked pores. The best treatment for comedonal acne is a topical retinoid.
While it’s pretty rare, Dr. Dendy notes that on occasion “light therapy can cause increased inflammation and .” There’s also not enough studies done to assess the long term effects of light therapy, however it’s been proven to be safe in the short term.
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