Choosing skin care products can be overwhelming. There are so many ingredients and so many claims of benefits.

But there is one ingredient that has stayed the course since its introduction in the 1960s. Retin-A is a form of vitamin A used to rejuvenate skin and, in some cases, treat skin spots that may be precancerous. 

“Retin-A is a great product,” says dermatologist Anisha Patel, M.D. “The active ingredient is tretinoin...

There’s a new term floating around the food world. It’s designed to help you identify the processed foods it’s OK to eat, and the ones to avoid.

It is ultra-processed foods. This is a category of packaged foods that have been through the most changes from their original state.

Ultra-processed foods generally contain additives, preservatives and other substances extracted from foods. They’ve been linked to cancer and heart...