Medically reviewed by Jamie Johnson, RDN Key Takeaways How fast vitamins work depends on factors such as the type of vitamin, ...

Vitamin C is essential for immunity, skin and overall health — but more isn’t always better. Experts explain the ideal daily ...

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

Sarah Bradley is a writer with six years of experience creating personal essays, reported features, and content related to health and parenting topics. Susan Bard, MD, is a board-certified general and ...

Vitamin C has been crowned the ultimate immune-boosting, anti-aging wonder vitamin, leading millions of people to megadose on supplements while slathering high-concentration serums on their faces ...

Vitamin C is a health superstar. It’s essential for healthy skin, bones, teeth and gums. It supports the immune system, and helps the body absorb iron and heal wounds. It’s a strong antioxidant that ...

Amla juice and lemon water can both be rich sources of vitamin C. To find out which one can boost your immunity faster, you ...

You may have heard that using niacinamide and vitamin C together raises some safety concerns. Both ingredients boast brightening, smoothing, and antioxidant benefits—but do they belong in the same ...