Amla powder is made from the part fruit of the Indian gooseberry. It’s been used in Ayurvedic medicine for centuries to treat everything from diarrhea to jaundice. The powder has demonstrated anti-inflammatory effects, leading some people to chalk it up as the next big thing in beauty. But can using Amla really lead to a healthier scalp and luscious locks? Here’s what the research says, how to make your own hair mask, and more.