As Valentine’s Day approaches, I thought it would be worthwhile to look at skincare's biggest “power couples.” That is, the skincare ingredients that are known to work together effectively. While minimalism in skincare is often advised, there are instances where combining two products can yield better results than using just one. Skincare “cocktailing” has gained significant popularity, but there’s a right way to combine ingredients. Read on to learn more about these dynamic duos and how to make sure they work together harmoniously.