L-Theanine, Quantum

Once your order is placed and you have received an order confirmation, we are unable to change your order to add or remove items. To purchase additional products, you will need to place a new order. You may cancel your order before shipment by calling 1-800-370-3447.

We guarantee the quality and consistency of every supplement we offer by using cutting-edge testing equipment and practices and running multiple tests on each ingredient, including:

• Heavy metal testing
• Microbial testing for contaminants
• Microscopy to evaluate botanical identity
• High-performance thin layer chromatography, which looks at levels of active phytochemicals within a plant

At QNL, our rigorous testing protocols guarantee that our products are free from toxins, pesticides and herbicides, and steroid and antibiotic residues.

In addition to performing in-house testing, we engage numerous third parties to validate the quality of our products. Our manufacturing facility is certified by independent testing agencies like USP and NSF. Many of our products are further certified by the Non-GMO Project, OU Kosher, and USDA Organic.

Lastly, the vitality of the ingredients tested is screened using energetic assessment methods based on an applied kinesiology method known as the Bi-Digital O-Ring Test, developed by Dr. Yoshiaki Omura.1 This method has been an integral part of QNL’s ingredient sourcing and formulation development.

Our vegetable capsules are made from tree fiber. Our Certificate of Analysis (CoA) verifies that no undesirable solvents are used to make our capsules. Solvent-free vegetable capsules offer superior digestibility and purity while providing beneficial fiber.

Vegetable capsules are a healthier alternative to solvent-tainted vegetable capsules, tablets, and animal-based gelatin capsules, all of which contain chemical preservatives and other contaminants.

We offer 52 products that are certified kosher by Orthodox Union Kosher, the world’s largest and most widely recognized international kosher certification agency.

Quantum Nutrition Labs (QNL) meticulously sources all of its ingredients, accepting only those that meet the highest quality standards for identity, purity, strength, and composition. We strive to procure sustainably produced botanicals and innovative nutrient blends to deliver the best, most bioavailable ingredients for each of our products.

Once received, all raw materials are held in a 10-day quarantine for an in-depth inspection. We test samples from every shipment lot in our state-of-the-art, USP-certified laboratory. After ingredients are proven to be safe, pure, and free of contaminants, they are moved into the manufacturing phase of supplement development.

Excipients are binders, fillers, and "glues" that are added to many supplements to prevent clumping of powdered ingredients and improve efficiency in manufacturing. Typically, excipients do not have nutritional value and their ingestion can cause adverse effects, toxicity, allergic responses, and drug interactions.

At Quantum Nutrition Labs, we do not use any non-nutritive excipients in the manufacturing of our products. Our products are designed to provide pure, clean nutritional supplementation without any toxic tagalongs that can harm the body.

Quantum Nutrition Labs offers capsules, powders, and liquid supplements, but not tablets. This is because tablets almost always require non-nutritive binding agents to manufacture. When you choose a Quantum Nutrition product, you can be assured that its contents are pure.

Clinical evidence supports the use of several different supplements for promoting restful sleep. These include:

• Melatonin. This sleep-promoting hormone is naturally released by the body in the hours leading up to bedtime. Melatonin supplementation may help support a healthy sleep-wake cycle especially when you’re trying to realign your natural sleep rhythm due to shift work or jet lag. However, it’s important to use melatonin cautiously as scientists lack information on its long-term effects.
• Magnesium. Magnesium deficiency is increasingly common and may cause nighttime symptoms like leg cramps. Easy for the body to absorb, magnesium glycinate is known for its calming properties and may promote relaxation and sleep. Research indicates that supplementing with magnesium may help some individuals fall asleep faster and stay asleep longer.
• Lavender (Lavandula angustifolia). Essential oil components of English lavender, like linalool and terpineol, support sleep by reducing stress and activity in the central nervous system, lowering blood pressure, and potentially improving mood. Lavender has a long history of use in natural medicine for its calming properties and possesses limited risk for side effects. Lavender oil can be taken by mouth or administered through aromatherapy.
• Valerian (Valeriana officinalis). This root extract contains many bioactive chemicals that can have moderate sedative and relaxing effects on the body. A possible mechanism by which valerian may improve sleep is by increasing the amount of gamma-aminobutyric acid (GABA), a calming neurochemical in the brain.11 Some studies have shown valerian to help people fall asleep faster and sleep more throughout the night.
• L-theanine. An amino acid found in tea leaves, L-theanine is another substance that triggers the release of GABA.12 L-theanine naturally calms anxiety, enhances relaxation, and provides a safe natural sleep aid without drowsiness.13 L-theanine should be used carefully as it can interact with other medications.

Explore Quantum Nutrition Labs’ specially formulated sleep-promoting supplements at Supplements for Sleep.