While vitamin C is essential for health, high doses can cause serious side effects. Learn the risks and how to use it safely, ...

Nutritionists share the best time to take vitamin C supplements, if it needs to be taken with food, its benefits and risks, and foods that contain vitamin C.

Most people can get the vitamin C they need from eating a healthy, balanced diet. But for people with certain health concerns, vitamin C supplements may help.

The best K-beauty Vitamin C serums for dark spots and hyperpigmentation, according to Korean beauty experts.

Our writer tested the best vitamin C serums, including SkinCeuticals and CeraVe, and asked experts for their top picks for sensitive, oily, and acne-prone skin.

Can vitamin C really help prevent or even treat colds? Learn more from WebMD about vitamin C's role in keeping you well this cold season.

Vitamin B12 is an essential nutrient for our bodies. Here's how to be sure you're getting enough of it.

Supplements claiming to lower stress levels are trending but are cortisol supplements legit? We asked experts to find out.

Symptoms of a vitamin C deficiency include weakness, bruising, and dry skin. Learn more about the warning signs and how to get more vitamin C in your diet.

Alongside sunscreen and a retinoid, vitamin C serum should be among your top three skincare products. Here's why. 🍊 ...