Vitamin C is already known for brightening skin and protecting against damage, but a new Japanese study shows it may also thicken ageing skin by switching on key genes that promote skin repair.

When we think of vitamin C, oranges and lemons usually take the spotlight. But there’s a whole world of non-citrus foods quietly doing the heavy lifting when it comes to boosting your immunity ...

Are you eating enough vitamin C? Here's how much you should be consuming, according to nutrition experts.

Vitamin C, particularly in its purest form (L-ascorbic acid), is highly acidic. This low pH can disrupt your skin’s natural barrier, leading to moisture loss and dryness.

Vitamin C and D supplements are generally safe to take together. Taking both supplements may also enhance health benefits, such as immune function.

Vitamin C is found in oranges, but other fruits deliver more of the nutrient. Fruits that contain more vitamin C than an orange include kiwi and strawberries.

For the April 23, 2025, edition of the Beauty Brief, the writers share their favorite vitamin C serums from Sunday Riley, Clinique, Skinceuticals, and more.

Advice about when to use vitamin C serum, what other ingredients to avoid when using vitamin C, and more, according to a dermatologist. Plus, shop products.