D-Tryptophan is an essential amino acid that serves as a precursor to important neurotransmitters in the brain, including serotonin and melatonin. It is used therapeutically for various health conditions.
Product Parameters
| Testing Item |
Standard |
Result |
| Appearance |
White to light yellow crystal powder |
conforms |
| Assay/% |
≥98.50 |
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)/% |
≤0.0020 |
0.0004 |
| Arsenic(As)/% |
≤0.0002 |
0.0001 |
| Mercury(Hg)/% |
≤0.00001 |
conforms |
Product application:
L-tryptophan is one of the essential amino acids for the human body. Its functions and effects on the human body mainly include the following aspects:
1.Promoting brain development: Tryptophan can enhance the working efficiency of the brain and also promote the synthesis of neurotransmitters, which to a certain extent can facilitate brain development. If there is a situation of memory decline, one can appropriately consume foods rich in tryptophan to promote brain development.
2.Improving memory: Tryptophan can enhance human memory and also increase the flexibility of the brain, assisting in improving the situation of memory decline. Tryptophan can regulate the nerve function of the brain and has the effect of promoting sleep.
3.Promoting sleep: The intake of tryptophan can increase the synthesis of serotonin, a neurotransmitter that plays a significant role in regulating mood, sleep and cognitive function. Tryptophan can enhance the synthesis of serotonin and melatonin, both of which play a crucial role in regulating the body's biological clock and sleep. Moderate intake of L-tryptophan can improve sleep quality, help fall asleep and maintain a good sleep state.
4.Promoting bone growth: Tryptophan can promote bone growth and also maintain the normal function of the nervous system. If there is a calcium deficiency, it may affect bone growth. At this time, one can appropriately consume foods rich in tryptophan to prevent osteoporosis.
5.Protecting the liver: After entering the human body, tryptophan can promote liver metabolism, help eliminate toxins in the body, and to a certain extent, it can also protect the liver. If there is a condition of liver insufficiency, one can appropriately consume foods rich in tryptophan to improve the condition of liver insufficiency.
6.Regulating emotions: Tryptophan is an important precursor of the brain chemical serotonin and can help regulate emotions. The decrease in tryptophan levels in the blood caused by dieting can lower the level of 5-hydroxytryptophan in the brain, leading to negative emotions such as depression, self-blame and anger.
7.Improving blood circulation: Tryptophan has the functions of regulating blood lipids and improving blood circulation. It has certain preventive and therapeutic effects on diseases such as arteriosclerosis and Alzheimer's disease, and can reduce the probability of cardiovascular and cerebrovascular diseases to a certain extent.
8.Boosting immunity: L-tryptophan has a certain impact on the function of the immune system. It participates in the synthesis of a substance called skin antimicrobial peptides, which have antibacterial, antiviral and anti-inflammatory effects, and help enhance immunity and prevent infections and diseases.
9.Promoting growth and development: L-tryptophan participates in the synthesis of proteins in the human body and is an important component of muscles, bones and tissues. Moderate intake of L-tryptophan helps promote growth and development and maintain the health of muscles and bones.
10.Protecting cardiovascular health: L-tryptophan can synthesize a substance called nitrogen monoxide, which helps relax blood vessels, lower blood pressure and prevent the occurrence of cardiovascular diseases.
11.Relieving anxiety and depression: L-tryptophan also plays a significant role in regulating the synthesis of dopamine in the brain. Dopamine is a neurotransmitter related to emotions, which can relieve anxiety and depression symptoms and enhance mood and happiness
Package and shipping:
About Us:
Located in beautiful Taiyuan, Shanxi Province, Shengjinyao (Shanxi) New Materials Co., Ltd. is a company engaged in international health food additives and ingredients. After years of development, our company has become a set of international food additives and ingredients research and development, production, sales as one of the integrated supplier and distributor.
The company insists that product quality is the core of the enterprise, food safety is the lifeline of the enterprise, and has established a long-term and stable strategic cooperative relationship with major domestic manufacturers to ensure high quality and competitive prices.
As the largest distributor in China, we are willing to provide one-stop service for different food additives and ingredients for small batch needs. At the same time, relying on the group's own advantageous logistics platform, it can provide customers with a full range of services such as warehousing, repackaging, sea transportation, air transportation and express delivery to meet the different needs of customers.
FAQ:
Q: What is the payment terms?
A: T/T and L/c
Q: What is your certificate?
A: ISO, KOSHER, HALAL.
Q: What packaging do you have?
A: Iron drum, IBC drum, liquid bag, ISO TANK and bag, etc. Customization is supported
Q: How can I get a sample?
A: We provide you with samples for free, but you have to pay the courier fee.
Q: How long is your delivery time?
A: Within 12 days after receiving T/T deposit or L/c original.
Audited Supplier 
){kind=link}