Premium 98% L-Theanine Powder for Improving Sleep CAS 3081-61-6

Product parameters

L-Theanine is an amino acid found naturally in tea leaves, especially in high-grade green tea.
What sets it apart is the ability to promote relaxation without causing drowsiness—a state often described as calm focus.
Regulatory bodies in the US, China, and elsewhere have recognized it as safe, backed by decades of documented use.
It dissolves easily in water, handles heat and pH changes well, and carries a natural umami taste that helps round out bitterness.
Sourced from green tea without artificial additives, it fits into food, beverage, and supplement formulations aimed at relaxation, focus, or better taste balance.

Specification

Application

1. Food & Beverage

Consumers expect functional foods and beverages to deliver both benefits and good taste.
Bitterness from ingredients like caffeine, vitamins, or plant extracts can create formulation challenges.

• Flavor optimization – L-Theanine’s natural umami profile helps round out bitterness and astringency in tea drinks, energy beverages, protein bars, and functional snacks. It improves mouthfeel and taste balance without adding sweetness or artificial flavors.

• Functional synergy with caffeine – When combined with caffeine, L-Theanine supports focused alertness while smoothing the sharper edges often associated with caffeine intake. This combination appears in work/study drinks, pre-workout formulas, and daytime energy products.

2. Dietary Supplements

Interest in natural approaches to stress management and sleep support continues to grow globally.
Consumers look for ingredients that are safe, non‑habit forming, and supported by research.

-Stress & relaxation support – Available in capsules, tablets, powders, or gummies. L-Theanine helps users manage daily stress without sedation. Suitable for professionals, students, and those in high‑demand environments.

-Sleep quality support – Used in nighttime blends, L-Theanine supports physiological relaxation that helps users fall asleep more easily and experience deeper rest. Unlike some sedating ingredients, it does not typically cause next‑day grogginess.

-Cognitive maintenance – Targeted at adults concerned about mental sharpness. Research has explored benefits for attention, focus, and mental clarity, particularly when combined with caffeine.

3. Personal Care & Cosmetics

Skincare formulations increasingly incorporate functional actives with biological effects.
“Neurocosmetics” and clean beauty trends have brought attention to ingredients that offer sensory benefits beyond basic hydration.

• L-Theanine is incorporated into facial cleansers, moisturizers, serums, and masks.

• Its antioxidant properties help protect skin from environmental stressors.

• The soothing profile makes it a fit for sensitive skin care routines, post‑exposure calming products, and daily protective formulas.

4. Animal Nutrition & Feed AdditivesReduced antibiotic use and demand for clean animal production have increased interest in natural ingredients that support livestock health and performance.

• Added to feed formulations for broilers, weaned piglets, and dairy cattle.

• L-Theanine helps support gut microflora balance and immune function during periods of stress such as weaning or transport.

• It offers a science‑based option for animal health management in antibiotic‑free or reduced‑antibiotic production systems.

Q&A

Q1: What are the main natural sources of L-Theanine?

A1: L-Theanine is primarily found in tea leaves (Camellia sinensis), with green tea, matcha, and white teas containing the highest levels. Small amounts also exist in certain mushrooms and camellia varieties.

Q2: How does L-Theanine work in the body?

A2: L-Theanine influences brain chemistry by increasing alpha wave activity, which is associated with a state of wakeful relaxation. It also affects neurotransmitters involved in mood regulation, including GABA, dopamine, and serotonin, contributing to its calming properties.

Q3: What are the common ways to incorporate L-Theanine into daily routines?

A3: Consumers can obtain L-Theanine through tea consumption, functional foods and beverages fortified with L-Theanine, or dietary supplements such as capsules, tablets, powders, and gummies. Choice depends on lifestyle preferences and desired application.

Q4: What is the recommended daily intake of L-Theanine?

A4: Clinical studies typically use doses between 100-400 mg per day for healthy adults, with 200 mg being the most common amount. L-Theanine is recognized as GRAS (Generally Recognized as Safe) by the US FDA and has been used safely for decades. As with any supplement, pregnant or nursing women and individuals taking medications should consult a healthcare professional before use.

Q5: How does L-Theanine interact with caffeine?

A5: L-Theanine and caffeine work synergistically. L-Theanine promotes relaxation and smooths the jittery effects sometimes associated with caffeine, while caffeine provides alertness. Together, they support focused attention and mental clarity. This combination is popular in energy drinks, pre-workout formulas, and morning supplements designed for cognitive performance.

Q6: What should buyers consider when sourcing L-Theanine for commercial applications?

A6: Key considerations include purity, consistency, solubility, and stability across processing conditions. GEMSEN L-Theanine meets high standards for all these parameters, with rigorous testing to ensure batch-to-batch reliability. Contact our technical team to discuss your specific formulation requirements or to request samples and specifications.