From smoothing fine lines to supporting hair growth and brightening tired-looking skin, red light therapy has quickly become one of the most talked-about technologies in skin care. But with so many claims surrounding its benefits, you may be wondering what’s actually backed by science—and what’s simply hype. Below, we break down what dermatologists are really saying about red light therapy, how it works and whether it’s worth adding to your routine.

If you’ve ever wondered if red light therapy works for wrinkles, hair loss or acne, you’ve come to the right place. In this blog, we’ll discuss:

• How does red light therapy work?
• What are the benefits of red light therapy?
• The best way to use red light therapy tools at home
• Is red light therapy scientifically proven?
• The best red light therapy devices

How does red light therapy work?

Red light therapy uses gentle red and near-infrared wavelengths to support the skin’s natural renewal and repair processes. These low-level light waves are believed to stimulate mitochondria in skin cells, promoting the production of adenosine triphosphate (ATP)—the energy source that powers cellular function. When cells have more energy available, they’re better equipped to repair damage, calm inflammation and support healthy skin turnover. As a result, red light therapy has become a popular option for improving the look of fine lines, acne, dullness and overall skin tone.

Board-certified dermatologist, Mohs surgeon and cosmetic surgeon, Dr. Joel Schlessinger explains that red light therapy devices are now widely available for at-home use, with many styles and price points to choose from. “With consistent use, these non-invasive tools may help to support collagen production, improve circulation and reduce inflammation,” he says. “These benefits can contribute to healthier-looking skin and improved tissue quality over time.”

Dr. Joel Schlessinger also notes that red light therapy has gained traction in clinical settings. “Increasingly, some dermatologists are using red light therapy following in-office procedures to help support healing after treatments like lasers,” he shares.

What are the benefits of red light therapy?

Red light therapy has earned its place in many skin care routines thanks to its ability to support skin health on multiple levels. By encouraging collagen activity, it can help skin appear firmer and more refined, gradually softening the look of fine lines and wrinkles. It also supports circulation at the skin’s surface, helping deliver oxygen and nutrients that contribute to brighter, more refreshed-looking skin.

Dr. Daniel Schlessinger, board-certified dermatologist, Mohs surgeon and cosmetic surgeon, explains, “One of the biggest advantages of red light therapy is how gentle it is. Because it’s non-invasive and free of heat or irritation, it can even be used on sensitive or easily reactive skin, to help diminish dullness, uneven skin tone and signs of aging.”

While red light therapy isn’t designed to eliminate acne-causing bacteria, it may play a supporting role for acne-prone skin by helping to calm redness, reduce inflammation and soothe stressed skin. For this reason, many people pair red and blue light treatments together to address breakouts while also supporting overall skin balance.

“Over time, consistent use of red light therapy may help improve skin texture and luminosity, offering visible results without recovery time or disruption to your daily routine,” adds Dr. Daniel Schlessinger.

The best way to use red light therapy tools at home

To get the most out of your red light therapy device, regular use matters more than intensity. Most at-home devices are designed to be used several times per week—typically three to five sessions—to help support gradual, visible improvements. For best light absorption, begin with freshly cleansed skin, free of makeup, sunscreen or residue.

Dr. Joel Schlessinger shares, “Results from red light therapy tend to build over time rather than appear overnight. With consistent use, many people begin to notice changes in skin tone, texture and overall skin appearance after a few weeks or months.”

Red light therapy can enhance a well-rounded skin care routine, especially when used alongside ingredients like antioxidants, retinoids and salicylic acid. And as always, daytime routines should end with a broad-spectrum sunscreen to help defend skin against UV damage.

“Because red light therapy is non-invasive and comfortable, it’s generally suitable for most skin types. That said, anyone with photosensitivity concerns or who takes medications that increase sun sensitivity should check with a board-certified dermatologist before trying a red light therapy device,” adds Dr. Daniel Schlessinger.

Is red light therapy scientifically proven?

Studies suggest that it can provide measurable benefits when used correctly and consistently. While these tools are not a replacement for in-office procedures or your daily skin care routine, red light therapy may serve as a supportive, non-invasive option for improving skin tone, diminishing fine lines and promoting overall skin health when used properly.

Dr. Daniel Schlessinger adds, “LED light therapy may offer benefits for concerns such as acne-related inflammation or hair density, but the results are typically subtle. These treatments tend to be most effective when used alongside established medical or cosmetic therapies. In our practice, we utilize LED devices as supportive tools and try to set realistic expectations. The same is true for at-home red light therapy devices.”

The best red light therapy devices

PMD Clean Redvolution Smart Facial Red Light Cleansing Device

This all-in-one device from PMD combines cleansing technology with the skin-rejuvenating benefits of red light therapy. Sonic pulsations help dislodge dirt, oil, and buildup from the skin’s surface, while integrated red LED light supports collagen activity and improves the appearance of early signs of aging. Designed for efficiency, it’s an ideal option for simplifying your routine while still delivering visible skin care benefits.

FOREO FAQ 502 Full-Spectrum Red Light Therapy

This innovative at-home red light therapy wand stands out by integrating both broad-spectrum and targeted wavelength technologies into a single device. Designed to replicate the sun’s full therapeutic light spectrum without exposing skin to damaging UV or blue light, it helps encourage collagen and elastin production, address uneven pigmentation, and reduce inflammation for a more balanced, revitalized complexion.

Mirabella Phototherapy 7-Color LED Facial Mask with Infrared

With seven customizable LED light settings, including red and infrared options, this multitasking mask lets you choose the perfect treatment for your unique skin. Red and infrared wavelengths help stimulate cellular activity, support collagen and enhance skin’s natural glow. With a soft, adaptable fit and a cordless design, it offers a comfortable and convenient way to incorporate LED light therapy into your at-home routine.

Althaea Skin CARA Multi-Modal Tool Kit

This advanced facial tool brings together multiple technologies to address a range of skin concerns at home. Featuring red and blue LED light therapy alongside radio frequency and EMS, it helps support collagen production, clarify blemish-prone skin and improve overall firmness. Designed to streamline your routine, it’s a convenient option for addressing tone, texture and radiance in one treatment.

Looking for more ways to enhance your skin care routine? Learn about retinal vs retinol vs prescription retinoids on the LovelySkin blog.