20,000+ people bought the K-beauty product in the last month. Before even applying this serum to my skin, the first thing that caught my attention was the scent. Most vitamin C serums smell stale ...

During a recent scroll through Amazon’s vast beauty department, I stumbled upon this K-Beauty ... on Amazon The serum’s star ingredient is niacinamide, which is a form of vitamin B.

There is evidence to suggest that combined low vitamin D and K levels is associated with increased risk of adverse c ...

But with so many options on the market, choosing the best vitamin C serum can be overwhelming—especially when each promises to deliver glowing, youthful skin. To help you find the most effective ...

Unlike moisturizers or hydrating serums, vitamin C is a notoriously unstable ingredient, and it requires careful storage to remain effective. If you’re investing in a quality serum (and some of ...