Amla is a sour fruit that's used medicinally in Ayurveda for its benefits to the skin, digestive system, and immune system. Amla is rich in polyphenols and tannins, compounds with antioxidant properties. Studies suggest that amla may support skin health by increasing pro-collagen content and decreasing the expression of matrix metalloproteinases, enzymes that degrade the structural integrity of the skin. Amla may also help reduce the photo-aging impacts of UVB light.