I’ve been taking Natural Factors Suntheanine L-Theanine for a few months now, and the results have been amazing. Within 30–40 minutes of taking it, I feel a clear sense of calm and mental clarity, without feeling sleepy or sluggish. It’s perfect for managing daily stress and anxiety, especially during busy workdays or emotionally intense moments with natural ingredients of great quality.
Stress-Relax®, Suntheanine® L-Theanine, Fruit, 120 Chewable Tablets (100 mg per Tablet)
Dietary Supplement 200 mg Per 2 Tablets Relaxation & Calm Suitable For Vegetarians/Vegans Suntheanine® L-theanine is like calm and clarity in a bottle. Use during the day for a sense of calm and focus or at night to help settle the "busy brain" and relax for peaceful sleep. Suntheanine contains pure L-theanine, a unique amino acid found in green tea that supports a sense of calm and relaxation. Supports sleep quality. Produced via a proprietary enzymatic fermentation process guaranteeing pure L-theanine for maximum effectiveness. Supported by many clinical studies. In a fruit-flavored chewable tablet. Isura®: Verified Clean: ✔ Non GMO: ✔ The Isura® seal is your assurance that this product is independently verified as clean and safe, and has been tested for over 800 possible contaminants. This product is Isura verified clean, one of the highest testing standards in the world.
International delivery
Shipping calculated at checkout
Returns & exchanges
Within 30 days of delivery
Dietary Supplement 200 mg Per 2 Tablets Relaxation & Calm Suitable For Vegetarians/Vegans Suntheanine® L-theanine is like calm and clarity in a bottle. Use during the day for a sense of calm and focus or at night to help settle the "busy brain" and relax for peaceful sleep. Suntheanine contains pure L-theanine, a unique amino acid found in green tea that supports a sense of calm and relaxation. Supports sleep quality. Produced via a proprietary enzymatic fermentation process guaranteeing pure L-theanine for maximum effectiveness. Supported by many clinical studies. In a fruit-flavored chewable tablet. Isura®: Verified Clean: ✔ Non GMO: ✔ The Isura® seal is your assurance that this product is independently verified as clean and safe, and has been tested for over 800 possible contaminants. This product is Isura verified clean, one of the highest testing standards in the world.
- SKU
- 3-105724
- Brand
- Natural Factors
- Category
- health / supplements / categories / amino-acids
- Variants
- 1
Customer reviews
The taste is really good. My child loves eating these. I definitely notice it calms my child. I give my child a trio of lozenges to support ADHD and ASD. Theanine, zinc and GABA. I’m yet to see long term the effect, but so far this theanine relaxes my child.
I've noticed that when taking with my morning coffee that I feel a more calm focus and the effects last longer. The chewable tablet has a great taste and texture. It's a little bit citrusy. Great quality product. Natural Factors is known to have rigorous testing to ensure purity.
I’ve been using the Stress-Relax Suntheanine L-Theanine supplement and I’m very impressed with its overall quality. The capsules are well-made and consistent, and the ingredient quality feels premium, featuring Suntheanine, a well-regarded form of L-theanine. The capsules are easy to swallow and have little to no after taste, making them convenient for daily use.
The quality is excellent. The packaging is sturdy, clearly labeled, and provides precise dosage guidance—typically one capsule once or twice daily as needed. The ingredients are pure, non-GMO, and free from artificial colors, preservatives, or allergens, making it safe for regular use.
One of the best suprises for my headaches and hormonal problems. I used for staying focused and calm as I enter peri.
I’ve been using Suntheanine for a while and it helps me stay calm and focused, especially on busy days. It doesn’t make me sleepy, just relaxed in a natural way. The tablets are easy to take and taste fine. A bit expensive, but it works well and feels like good quality.
In case you are not familiar with theanine, it is touted to benefit anxious feelings and can even help complement caffeine. It helps add a calm focus alongside the energy you get with caffeine. If you take it by itself it can help you relax. This is a chewable, so the composition is a little chalky but the flavor is nice and pleasantly neutral, not overpowering. It does have sugar in it though so you may want to clean your teeth after.
very nice taste/flavour, suntheanine is more reliable than l-theanine, which makes this product a good quality one, package is easy to close and open
Quality is super! The ingredients are great! Size arranged! What you need! Performance is felt! the product arranged, perfectly packed, the effect is definitely there! I will order more! Just as quickly delivered