We know that we only thrive if we can guarantee our combined price competiveness and quality advantageous at the same time for L-Serine, Hawthorn Polysaccharide , Emodin 50% , Bamboo Leaf Extract ,Oat Straw Extract . Please send us your specifications and requirements, or feel free to contact us with any questions or inquiries that you may have. The product will supply to all over the world, such as Europe, America, Australia,Qatar , El Salvador ,Philadelphia , Portland .We have to continue to uphold the "quality, comprehensive, efficient" business philosophy of "honest, responsible, innovative"spirit of service, abide by the contract and abide by reputation, first-class products and improve service welcome overseas customers patrons.