Here's Harvard Medical School's A-to-Z Guide on Serums

The world of skincare can be quite confusing. Too many products to possibly count, so many directions, and endless ingredients. Whether you're a beauty junkie or not, every now and then we all need a straightforward refresher to clear things up and bring us back to the basics. For starters, what exactly is serum?

Luckily when it comes to serums, Harvard Medical School recently published an informative guide on serums and everything you need to know. You've probably seen so many serums perusing while websites and beauty aisles, and you may or may not have found the right one for you. Believe me, it takes time. As a beauty editor, it wasn't until this year that I finally found my holy-grail serum (which I talk about in this essay).

Abigail Waldman, MD, instructor of dermatology at Harvard Medical School, shares in the article the difference between serum from a typical lotion, moisturiser, or cream. Serums are concentrated ingredients made to instantly seep and absorb into the skin. "I definitely recommend serums for anyone who is concerned about ageing," Waldman told Harvard. "It's a really good way to get extra anti-ageing effects, more than your typical moisturiser and sunscreen."

Below, discover the serum guide you've been looking for.