"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." When it comes to achieving bright, glowing skin, a vitamin C serum is key. But not all vitamin C serums ...

Regular vitamin C doesn’t prevent colds in most people, although daily supplementation modestly shortens illness duration.

Add Yahoo as a preferred source to see more of our stories on Google. Spend 30 seconds in any skincare aisle and you'll quickly realize one thing: Anti-aging is big business. With thousands of ...

When consumed in food or drink form, vitamin C can protect your entire body’s cells from damage; when applied topically, research shows it can help prevent signs of aging, hyperpigmentation and cancer ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Rory Evans Rory Evans is a writer focused on skin-care and beauty products.

Testing skincare products is an occupational hazard. In the past, I've been lucky. I'm relatively non-reactive (I used to claim). But last month, boy, was I humbled. I had polished off the last of my ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Hannah Frye Hannah Frye is a writer covering beauty and style products. She’s ...

CHARLOTTE, N.C. — Bowel cleansing for colonoscopy with a 1 L polyethylene glycol and ascorbic acid preparation proved highly effective and tolerable, according to a real-world study presented at ACG ...