Pterostilbene is a naturally occurring substance, produced by plants. It is chemically related to Resveratrol, which is produced by several plants in response to injury. Sources of Resveratrol in food include the skin of grapes, blueberries, raspberries, mulberries, and peanuts. HMS Nutrition’s Trans-Pterostilbene Supplements are produced in the USA and adhere to the high quality and standards our customers expect from our products. Quick overview of possible benefits – ►Source of antioxidants ►Blood sugar levels ►Cognitive and cardiovascular support ►Longevity and anti-aging We at HMS Nutrition want to bring you the highest quality vitamins to supplement your busy lifestyle. Add a product you can trust to your cart!