SHOPPING: The Perricone MD Fourth of July sale is here, and the savings are huge - with the potential to save up to 40 percent on your order and deep discounts on serums, moisturizers, and more.

The most effective vitamin C serum will include ferulic acid too. Here’s why, plus the best serums that combine both ingredients.

The Dr. Loretta Anti-Aging Repair Moisturizer corrects, smooths, brightens, and softens texture with its restorative anti-aging formula. Shop the lightweight face cream an InStyle editor swears by ...

Returning to Perricone MD, numerous reviewers have praised the products. A fan commented via Look Fantastic: "I've been using this serum for a few weeks now and have noticed a visible difference.