L-Theanine
CAS 3081-61-6

Applications

1.Functional Beverages & Mood Drinks:

Formulated into relaxation drinks, cognitive focus drinks, premium sugar-free tea beverages, and energy drinks, L-theanine helps ease caffeine-induced palpitations, anxiety, and jitters, thus delivering steady, long-lasting mental clarity, and improved focus.

2.Stress Relief & Sleep Supplements:

It is widely used to produce capsules, tablets or stress-relief gummies. It does not induce direct hypnosis, but rather inhibits overexcited central nervous system and lowers cortisol (stress hormone) levels, ensuring the brain enter a peaceful alpha brain wave state before bedtime. In conclusion, it effectively improves sleep quality and shortens sleep onset latency in end products.

3.Nootropics & Cognitive Health:

Combined with popular active ingredients, such as caffeine, lion's mane mushroom extract, and phosphatidylserine (PS), L-theanine is formulated into cognitive-boosting supplements, which comprehensively boost working memory and anti-distraction ability, while stabilizing mood under high stress, thus making them suitable for scenarios such as high-pressure work, exams and long meetings.

Specifications

Advantages

1.We use an advanced green fermentation process (Enzymatic/Biological Process), and highly specific non-GMO functional enzymes are used throughout production. This process produces 100% natural L-configuration. The purity of L-theanine is maintained above 98% via a HPLC test. Most importantly, inactive D-theanine remains undetectable.

2.Membrane filtration and crystallization are both adopted throughout the purification process. This product is white crystalline powder that dissolves quickly in both cold and hot water within seconds. The resulting solution remains clear and transparent, similar to pure water. In addition, no turbidity, suspended particles, or crystal residues are observed.

3. Throughout the entire production process, we do not add highly toxic organic solvents or chemical catalysts. The raw material features a pure flavor with mild natural caramel sweetness and umami taste. Heavy metals including lead, arsenic and mercury in the product are controlled below the strict international limit of 0.1 ppm.

FAQ

Q1: What is the purity of your L-theanine? How do you ensure the absence of inactive D-isomers?
A: The purity of our L-theanine exceeds 98% high quality based on HPLC testing. Production is carried out using a 100% green biological fermentation process. Highly specific non-GMO enzymes are used during manufacturing, ensuring that inactive D-theanine remains undetectable when tested by chiral chromatography. This helps ensure that consumers receive only the active L-configuration associated with relaxation benefits.

Q2: We are developing a RTD functional beverage, and how does your L-theanine dissolve in RTD beverages?
A: Based on the technique of filtration and crystallization, our powder dissolves in cold or hot water within seconds. The resulting solution remains clear and transparent, similar to pure water. In addition, no turbidity, suspended particles, or crystal residues are observed. This helps liquid products maintain a perfect and clean appearance throughout on the shelf. Layer separation and precipitation are not expected under normal conditions.

Q3: How does your product taste like? Will it affect the flavor of premium relaxation gummies or mood beverages?
A: Our L-theanine has a very clean taste profile. A light natural sweetness and mild umami note are present. Besides, no chemical odor and synthetic bitterness are detected. Since there is no toxic industrial solvents used during the purification process, this contributes to excellent sensory quality. The taste profile can help reduce bitterness from caffeine and plant extracts. Therefore, many formulas require minimal flavor masking agents and reduced added sweeteners.

Q4: What is the purpose of using L-theanine together with caffeine in modern energy formulation?
A: This combination is widely seen in nootropics products. Caffeine as a powerful stimulant, often causes side effects such as palpitations, anxiety and energy crashes (commonly known as “caffeine jitters”). In contrast, L-theanine can cross the blood-brain barrier and naturally boost alpha brain waves that encourage relaxation. When used in combination, L-theanine helps alleviate the discomfort caused by caffeine-induced nervousness, whilst retaining and enhancing caffeine’s ability to boost focus and improve cognitive function. As a result, this blend induces a unique state of “calm alertness”, helping you to remain clear-headed and focused for extended periods without experiencing symptoms such as hand tremors, restlessness or anxiety.