Medically reviewed by Susan Bard, MD Use vitamin C in the morning and retinol at night to avoid skin irritation.Vitamin C protects against photodamage and should be applied before applying ...

’Tis the season…to catch a cold or the flu. Vitamin C is touted as one of the best immune-boosting supplements on the market, which explains why searches around “vitamin C deficiency” have spiked by 1 ...

Vitamin C may help shorten how long cold symptoms last and their severity when used before cold symptoms start, but not after a cold begins.

Vitamin C serums have become a staple in many skin care routines — and for good reason. Whether you’re targeting dark spots, seeking a radiant glow, or simply want to boost your skin’s overall health, ...

Vitamin C is essential to the body, as we can’t produce it ourselves – and you better get enough, if you don’t want your ...