What should I look for when buying melatonin supplements?
* Melatonin should be Pharmacy grade. Pharmacy grade melatonin has a USP label printed on the bottle. The USP stands for United States Pharmacopeia. It provides testing and sets standards for food ingredients, medicines and food supplements. Products that meet the requirements of USP can display the USP VDSM on the product label. When you are buying USP grade melatonin, you are assured that you are getting high quality melatonin.