Product Name: 99% Purity Amino Acid Tryptophan, L-Tryptophan, D-Tryptophan, Dl-Tryptophan CAS 73-22-3 The content of active substances: 99% Nutrient Composition: Amino Acid Shelf Life: 2 Years Storage Method: Normal EINECS: / Formula: C11h12n2o2 CAS No.: 73-22-3 Appearance: White Powder Trademark: Desheng Transport Package: 25kg/Drum Specification: Kilograms Origin: Nantong, Jiangsu, China Product Description Product Description: Product Name99% Purity Amino Acid Tryptophan, L-Tryptophan, D-Tryptophan, Dl-Tryptophan CAS 73-22-3ColorWhitePurity99%CertificateKOSHER, FDA, ISOTryptophan is an amino acid that is made from plant or animal sources. It is known as an "essential" amino acid because the bodydoes not produce it. Tryptophan is important to the functions of many organs in the body. When you consume tryptophan, your bodyabsorbs it and changes it to eventually become a hormone called serotonin. Serotonin transmits signals between your nerve cellsand also narrows (constricts) blood vessels. The amount of serotonin in the brain can affect mood.Main FunctionsHelps support healthy circulatory systemsImproves cardiovascular healthLowers cholesterol levelsReduces hypertensionRelievesdepression and symptoms of other mental health problemsMay haveeffects in cancer prevention.Package &ShippingOur service:1. One to one business communication.2. Any inquiries will be replied within 12 hours.3. We offer convenient one-station purchasing service. Our professionaland thoughtful after-sales service eliminates your worries.4. Strictly on selecting raw materials.5. Reasonable &competitive price, fast lead time.FAQ:Q1: Are you amanufacturer?Yes, we are manufactuer.Q2: Which kind of payment terms do you accept?For small order, you can pay by T/T, Western Union, nomal order by T/T to our company account.Q3: Can you give me adiscount price?Surely, It depend on your qty.