Doctors prescribe vitamin B12 shots for people with a B12 deficiency or those with an underlying condition that inteferes with proper B12 absorption.

If you've recently started taking a new vitamin or supplement, you might wonder how long it takes for vitamins to work or when you’ll notice a difference. The answer depends on several factors, ...

From powders to pills, collagen supplements promise youthful skin and strong hair – but do they actually work?

Collagen is the most abundant protein in the body, and forms the scaffolding that helps maintain the structural integrity of our skin and musculoskeletal system. In short, collagen helps to keep our ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Does anyone actually like taking vitamins? You either have to chew up a gummy that is almost like candy ...

Gummy vitamins often contain different quantities of vitamins and minerals than they advertise and lose their potency more quickly than pills.

In skincare, we often focus on creams and serums, but vitamins are the real heroes for glowing skin. These nutrients work at the cellular level to repair damage, retain moisture, and protect against ...

Hair Vitamins and Supplements: What Are They and Do They Work? This article was reviewed by Addie Ganik, MD, FAAD. If you got a dollar for every time a celebrity promoted hair supplements, you’d be ...