Common name: L-Theanine
Synonyms: Theanine, Theanin, N-Ethyl-L-glutamine, Suntheanine
Active ingredients: L-Theanine
CAS NO.: 3081-61-6
Molecular Formula: C7H14N2O3
Molecular Weight: 174.20
Structure:

Main Specifications: 98%
Test method: HPLC
Appearance: white crystalline powder
Heavy Metals: NMT10ppm
Residual solvent: Conform to USP39, EP8.0
Packing: 5, 10, 25KG/ cardboard drum
Storage: Store in cool and dry place and keep away from strong direct light and heat
Shelf Life: Two years when properly stored

Applications:

What’s L-theanine?

L-theanine is an amino acid that is found in tea leaves. It was identified in tea by Japanese scientists in 1949. While tea is the most common dietary source for L-theanine, this compound is also found in some types of mushrooms. In foods, particularly green tea, L-theanine is thought to be a source of umami, the savory, brothy taste.

Health Benefits of L-theanine

1. Improving sleep.

With its ability to increase relaxation and lower stress, L-theanine can help in sleep in a number of ways. L-theanine may help people fall asleep more quickly and easily at bedtime, thanks to the relaxation boost it delivers. Research also shows L-theanine can improve the quality of sleep—not by acting as a sedative, but by lowering anxiety and promoting relaxation.
There’s evidence that L-theanine may help improve sleep quality in children with attention deficit hyperactivity disorder (ADHD). A study examined the effects on the sleep of boys ages 8-12, and found that the supplement worked safely and effectively to improve the quality of their sleep, helping them to sleep more soundly.

2. Reducing stress and anxiety.

L-theanine is what’s known as an anxiolytic—it works to reduce anxiety. Some anxiolytics, such as valerian and hops, have sedative effects. L-theanine, on the other hand, promotes relaxation and stress reduction without sedating. L-theanine can help foster a state of calm, attentive wakefulness.
L-theanine has positive effects on both the mental and physical symptoms of stress, including lowering heart rate and blood pressure.
Research suggests that L-theanine can help reduce anxiety in people with schizophrenia and schizoaffective disorder.

3. Enhancing attention, focus, memory, and learning.

Under stress, the body increases the production of certain hormones, including cortisol and corticosterone. These hormone changes inhibit some brain activity, including memory formation and spatial learning. L-theanine helps to lower levels of the stress hormone corticosterone and avoid interference with memory and learning.
M-theanine may help boost other cognitive skills. Research shows L-theanine can increase attention span and reaction time in people who are prone to anxiety. It may help improve accuracy—one study shows that taking L-theanine reduced the number of errors made in a test of attention.

4. Helping maintain a healthy weight.

The anti-anxiety and sleep-promoting abilities of L-theanine may help people to maintain a healthy weight. After all, getting enough sleep and limiting stress are both key to sticking with a healthy diet and avoiding weight gain.
L-theanine may also play a more direct role in weight maintenance. There’s scientific evidence indicating L-theanine may help to limit fat accumulation and weight gain as well as protect against obesity.

5. Positive Effects on Cancer Prevention and Treatment

While more research is needed, some studies have indicated that L-theanine may be able to help some forms of chemotherapy work more effectively. That said, L-theanine or green tea may have other ingredients that may conflict with cancer treatment. So if you’re going through treatment, discuss with your doctor before adding L-theanine to your routine.
Some studies of green tea drinkers have indicated that green tea (which, of course, includes L-theanine), may reduce the risk of cancer. One 2012 study found that women who drank green tea had 32% lower odds of developing pancreatic cancer than those who didn’t. Another study that same year found that women diagnosed with ovarian cancer who drank at least one cup of green per day lived longer than those who didn’t drink green tea.