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Korean vitamin C serums are, by far, the most exciting category of the moment. I say this as a sworn member of the K-beauty fandom and a beauty journalist who tests skincare for a living. I reach for ...

Vitamin C is the key to glowing, smooth skin but if you're using it at night, you're wasting its full effects. Here's why ...

Over 5,000 people have purchased it in the past month. Reece Andavolgyi is an Updates Editor at InStyle, where she covers all things beauty, fashion, news, deals, and trends. She covers deals, ...

NBC Select independently determines what we cover and recommend. When you click on or buy through our links, we may earn a commission. Learn more. When consumed in food or drink form, vitamin C can ...

While everyone wants a lit-from-within glow, achieving a bright complexion can be easier said than done. The truth is, things happen: from melasma to sun damage to hormonal fluctuations during ...

Niacinamide is generally better tolerated for rosacea. “It helps to reduce redness, strengthen the skin barrier, and calm inflammation without causing irritation,” explains Dr. Mahto. Generally ...

Vitamin C is a popular supplement, but it can interact with other supplements and medications like vitamin B12, iron, and ...

Vitamin D is a fat-soluble vitamin and supplement that supports bone health and the immune system. Supplements like magnesium or calcium shouldn't be taken with it.

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