Xi'an Hj Herb Biotechnology Co., Ltd. is one of the leading manufacturers and suppliers of l-tryptophan in China. The company offers high quality customized products with reasonable price for customers around the world. Welcome to wholesale bulk l-tryptophan in stock here from our factory. Contact us for free sample.

　　What is L-Tryptophan?

　　Best L-Tryptophan for dogs and cats is important as it can help to reduce stress and aggression in pets during stressful situations. L-Tryptophan is a natural amino acid found in many proteins, which is involved in the production of the hormone serotonin and has been shown to help reduce aggression and stress.

　　Uses

　　l-tryptophan uses for insomnia, sleep apnea, depression, anxiety, facial pain, a severe form of premenstrual syndrome called premenstrual dysphoric disorder (PMDD), smoking cessation, grinding teeth during sleep (bruxism), attention deficit-hyperactivity disorder (ADHD), tourette's syndrome, and to improve athletic.

l-tryptophan price

　　Specification

Testing Item	Standard	Result
Appearance	White to light yellow crystal powder	conforms
Assay/%	≥98.00	99.10
Specific Rotation	-29.0° -32.8°	-29.3°
Residue on Ignition/%	≤0.50	0.40
Loss on Drying/%	≤0.50	0.30
Heavy Metal(Pb)/%	≤5	<5
Arsenic(As)/%	≤2	conforms
Mercury(Hg)/%	≤0.1	conforms
Cadmium(Cd)/%	≤2	conforms
Salmonella	Negative in 10g	conforms
PH	5.0~7.0	conforms

　　L-Tryptophan where to buy?

　　l-tryptophan powder supplier, L-Tryptophan price, we can provide 10-30 grams of free samples, US warehouse has a regular stock of 500kg of each month for the market of the global. certificate of analysis (COA), MSDS, specification sheet, pricing quotation is obtainable upon your request.

　　l-tryptophan buy online to add this branded ingredient to your final product. Email: info@hjagrifeed.com

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