Polygonum Cuspidatum Extract Trans-Resveratrol 98% HPLC is a powerful and all-natural supplement that is made in our factory. Our extract is carefully formulated to provide a potent dose of trans-resveratrol, a polyphenol found in numerous plants including grapes and Japanese knotweed. Our product is made using the highest quality ingredients and undergoes rigorous testing to ensure purity, potency, and quality. Our Polygonum Cuspidatum Extract Trans-Resveratrol 98% HPLC is an excellent choice for individuals looking to support their overall health and wellness naturally. As a factory, we are committed to producing the best possible products and providing our customers with excellent service and support.