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October 17, 2025L-theanine is an amino acid found naturally in green tea, known for promoting relaxation without drowsiness. Its primary function is to reduce stress and enhance focus, with key benefits including improved mental clarity, better sleep quality, and calming effects for stress management. Choosing a quality L-theanine supplement ensures you get effective, pure, and clean ingredients. Canadian consumers looking for the best L-theanine should focus on trusted brands, tested for safety and efficacy—because when it comes to top supplements in Canada, quality matters.
Nutratology® L-Theanine 250MG Capsules | Stress Management | 120 Capsules
Nutratology
- The Natural Path To Stress Relief - L-Theanine’s calming properties help promote relaxation and a sense of tranquility, supporting effective stress management. Derived naturally from tea leaves, it gently helps unwind the mind while supporting a balanced state of calm
- Supports Relaxation Without Drowsiness - L-Theanine helps promote relaxation while allowing you to remain awake and functional throughout the day, making it suitable for daytime or evening use
- Promotes Relaxation & Calmness - L-Theanine is commonly used to help promote a calm, balanced emotional state, helping you feel more at ease during everyday stress
- Balances The Effects Of Caffeine - When taken with caffeine, L-Theanine is commonly used to help balance its effects by preventing jitters, allowing you to experience all the cognitive & energy benefits of caffeine without the unwanted jitters
- Made In Canada - Manufactured in a GMP certified facility right here in Ontario, Canada. Nutratology's unwavering focus on quality means we also ensure all of our products go through rigorous third party lab testing to ensure quality, potency & safety in every batch!
- Proudly Canadian, Purposefully Driven - Trusted by over 1,500,000 Canadians in just 3 years, Nutratology is on a mission to do more. Through Vitamin Angels, we support 120,000+ women and children with vital nutrition globally. Through Cleanhub, we've removed 27,000+ lbs of plastic from our environment. Canadian roots. Global impact
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We picked Nutratology L-theanine 250MG Capsules because it's a Canadian-made supplement trusted for its purity and consistent stress management results. Nutratology sources high-quality ingredients and rigorously tests its L-theanine in local facilities, ensuring the cleanest and most effective dosage for Canadians. This capsule stands out for its no-filler formula, generous 120-count size, and strong customer reviews for sustained focus and calm. We emphasize its made-in-Canada origin, GMP-compliant manufacturing, and transparent labelling, which make it easy for local shoppers to trust and verify. Whether you're managing work stress or seeking calm, we think Nutratology offers the best mix of quality, value, and reliability among L-theanine supplements in Canada.
CanPrev L-Theanine with Magnesium, Vegan, 250 mg L-Theanine, 90 Capsules
CanPrev
- Stay Calm, Stay Sharp: CanPrev L-Theanine with Magnesium helps promote relaxation without drowsiness. Perfect for adults needing to unwind while staying alert, each vegan capsule combines 250 mg of L-theanine and magnesium bisglycinate for a balanced day
- Enhanced Absorption Formula: This blend supports optimal L-theanine absorption, helping your body utilize the calming benefits more effectively. With magnesium bisglycinate included, it complements the L-theanine for a more complete supplement routine
- Defined Daily Dose: Get a reliable 250 mg of L-theanine per capsule, ensuring a straightforward supplement dose. It's a simple way to incorporate a consistent calming element into your daily routine, supporting overall wellness and relaxation
- Long-Lasting Supply: Enjoy the convenience of a 90-day supply with this 90-capsule bottle. It's designed to fit seamlessly into your lifestyle, reducing the need for frequent reorders while providing consistent support for relaxation and calm
- Vegan and Conscious Choice: Made with plant-based adults in mind, these vegan capsules are free from gluten, dairy, and GMOs. They're crafted to meet your dietary preferences while providing an effective, natural path to relaxation and inner balance
L-Theanine, Purest Formula ZERO Fillers, Made in Canada, 250mg, 120 Capsules, Premium Grade
Sapphire
- Naturally promotes relaxation without the drowsy side effects.
- Calming effect that reduces stress and anxiety.
- Supports cognitive function and chemical balances. Increased concentration and focus.
- Purest form available with the highest daily potency. Absolutely ZERO fillers and additives.
- Proudly Canadian, Vegan, Gluten Free, Soy Free, Dairy Free, Non GMO, GMP Certified.
Organika Canadian-Made L-Theanine Bonus Size 225mg - 110caps
Organika
- PROMOTES RELAXATION: The properties of L-theanine can best be summed up as a relaxing agent without sedation
- SLEEP HELP: If you struggle to fall asleep L-Theanine might be for you. It can help you fall asleep quicker and easier by helping lowering anxiety and promoting relaxation
- NON-DROWSY: Provides a balanacing and relaxing effect, without drowsiness. Feel free to take any time of day
- FAST ACTING: Able to cross the brain-blood barrier to for quick, effective mental support
- SUPPORT CANADIAN: A BC based, family owned and operated company for over 34 years. Proudly Canadian-made and manufactured in a GMP-certified facility and meticulously tested for purity and potency, delivering trusted quality and safety
PlantVital High Potency L-Theanine 250mg Capsules - Made in Canada - 360 Count - L Theanine Supplement for Relaxation and Stress Management, Non-GMO, Made in Canada, 12 Months Supply
PlantVital
- PROMOTES RELAXATION TEMPORARILY: Our L-Theanine formula features L-Theanine known for its relaxing properties. It helps promote relaxation temporarily.
- HIGH POTENCY - Our formula contains 250mg L-Theanine per capsule, which is renowned for its ability to induce temporary relaxation, helping you unwind and find tranquility amidst the demands of everyday life.
- FALL ASLEEP EASIER: The properties of L-Theanine helps promote relaxation temporarily, which can make it easier for you to fall asleep. Our formula is fast-acting so you can take it any time of day without feeling drowsy.
- RELAX ANYTIME: The properties of L-Theanine are perfect for relaxation without sedation making it ideal for use any time of day. Our formula is designed to cross the blood-brain barrier for fast-acting and effective support.
- PURCHASE TODAY 100% RISK-FREE: We make our PlantVital L-theanine supplement of the highest possible quality. If you are not completely satisfied, simply email or call for a full refund.
