All linked products are independently selected by our editors. If you purchase any of these products, we may earn a commission. Skincare routines used to revolve around a simple cleanse, tone, and moisturize, but these days, editors, skincare enthusiasts, and even dermatologists have us convinced that no regimen is complete without an LED mask .  In recent years, LED light — especially at-home devices — has gained the same level of attention as professional facials, and the anecdotal evidence is hard to ignore. Read the reviews of the hundreds of LED masks out there, and you’ll see people extolling their virtues for reducing fine lines and wrinkles, minimizing acne and acne scarring, and boosting overall radiance.  It’s impressive stuff. But what does the science say? Dermatologist Dr. Jonathan Kentley recently told R29 that LED devices often use specific wavelengths of light, such as red, near-infrared, and blue, depending on their intended function.…