NutriAvenue is an FDA registered supplier of ingredient used in nutritional supplements. Our main products are PQQ(NutriPQQ®), Epicatechin(Epicatelean®), Alpha-GPC, Phosphatidylserine(PS), L-Methyfolate (5-MTHF Ca). We are headquartered in Shanghai, China with branches in Baguio City, Philippines and California, USA.We have decades of experience building businesses in the supplement and raw material industries. With our quality materials, good customer support and competitive prices, we earned prestigious place in the market. https://www.nutriavenue.com/ingredients/l-theanine/