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Experts Say These Light Therapy Devices Are Game-Changers for Acne
Say goodbye to breakouts.
Dealing with acne means committing to being a lifelong product tester, dabbling in any repairing, brightening, and calming formulas that claim to reduce or prevent blemishes—rinse, toss, repeat. It’s not that those acne-fighting cleansers, brightening vitamin C serums, or sunscreens don’t offer visible results; it’s just that they rarely do so on their own. There comes a point in your acne journey where skin care tools become a necessary part of at-home maintenance, and very few are as effective as light therapy devices.
To understand light therapy and its benefits for those with acne-prone skin, you need to choose the right type of light for your skin concerns. Most devices emit either red or blue light, but the latter is more effective for treating acneic skin. “Blue light has anti-microbial properties, which can be helpful when dealing with acne since it is associated with a particular bacterium (Cutibacterium acnes or C. acnes),” says Dr. Gloria Lin, a dermatologist at Schweiger Dermatology Group. “This particular species produces a substance called porphyrin that will absorb the blue light and, through a chemical reaction, can destroy the bacteria. In the era of increasing antibiotic resistance, the blue light can be helpful as a non-antibiotic alternative.”
Our picks for the best light therapy devices for acne in 2025
Though blue light is a superstar for treating acne, the most common light therapy is red light, and it works like a charm for treating breakouts and signs of aging. “Although usually touted for its aging benefits, red light, like blue light, can help to treat acne,” says Dr. Luke Maxfield, a board-certified dermatologist and fellowship-trained Mohs surgeon. Many causes of acne include oil production, clogged pores, bacterial overgrowth, and inflammation—red lights help with two of these steps. It may decrease oil production and also help to decrease inflammation.” Luckily, many of the options on the market either feature blue light for acne or combine both red and blue light for a more powerful treatment.
After consulting skin experts, perusing editors’ stashes, and combing through customer reviews, we landed on the 14 best light therapy devices to treat acne at home.

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