Melatonin has become a popular, natural choice for people who need help falling asleep, and liquid melatonin is one of the fastest and most versatile ways to use it. In this article, we'll cover everything you need to know about liquid melatonin—from benefits to best practices—so you can make an informed decision on whether this supplement could help you achieve better sleep. What is Melatonin? Melatonin is a hormone produced…