Why It's Effective: Dr. Zalka says niacinamide a helpful addition to your 40s skincare routine. It soothes redness, ...

Candles are back on the sill, wool throws are out of storage, and the thermostat has crept up again at dusk. Across the ...

Sunscreens sold in Europe contain the ingredient Tinosorb S or BEMT, which gives you better protection. The FDA does not allow that ingredient in U.S. sunscreens, but that may change.

A lab at the University of Colorado Boulder is studying ways to improve indoor air quality, including a recent study that found allergens can be disabled by simply switching on a UV light.

Learn how greenhouse growers can use UV-A lighting to regulate potted basil growth and reduce stem elongation without chemical growth regulators.