"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Your morning skincare routine probably includes a vitamin C serum. It's a foolproof addition to any ...

While its reputation is at times dismissed as folklore or the efforts of orange juice marketing campaigns, vitamin C’s ...

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Since vitamin C is a water-soluble vitamin, any excess is excreted in the urine in a few hours. Current U.S. recommendations call for 75 mg of vitamin C per day for adult women and 90 mg per day for ...

Vitamin C doesn’t just belong in skincare products—it works even better when you eat it. Scientists discovered that vitamin C ...

Rachael Link is a registered dietitian and health writer based in San Francisco. She completed her undergraduate degree at the University of Central Missouri and holds a master’s degree from New York ...

Vitamin C has many important jobs in your body, but it’s probably best known for supporting your immune system. Some people wonder if vitamin C is helpful for allergies, which are immune reactions to ...