
Natural Factors
Natural Factors Stress-Relax Mental Calmness 100 mg (Chewable Tablets)
Clinically-tested L-Theanine that calms your mind without drowsiness
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Why Choose This Product
STRESS RELIEF
Suntheanine L-Theanine actually reduces feelings of stress and anxiety while restoring mental calmness — backed by published research.
NO DROWSINESS
Unlike other calming supplements, this promotes relaxation while keeping you alert and focused for better performance.
FAST ACTING
Chewable tablets work faster than capsules, delivering 100mg of clinically-tested Suntheanine when stress levels start rising.
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How It Works
How It Works
L-Theanine from green tea increases alpha brain waves and boosts neurotransmitters dopamine and serotonin. This creates a relaxed but alert mental state — the same feeling experienced during meditation. Suntheanine is the patented, pure form used in clinical studies.
Who It's For
Adults dealing with daily stress, anxiety, or racing thoughts who need to stay productive. Students and professionals who want mental calmness without sedation. Anyone looking to reduce caffeine jitters or improve sleep quality naturally.
Who It's Not For
Those wanting immediate sedation should look elsewhere. This supports relaxation while maintaining alertness and focus.
About This Product
What It Does
Mental Calmness delivers clinically-proven stress relief that actually works without making you drowsy. Suntheanine L-Theanine reduces anxiety and restores mental calm while keeping your mind sharp and focused. The chewable format works faster than capsules when stress hits.
Why It Works
- CLINICALLY TESTED: Suntheanine is the only L-Theanine backed by published research — not generic amino acids from unknown sources.
- BRAIN WAVE SUPPORT: Increases alpha brain waves for that calm-but-alert state, plus boosts mood-supporting neurotransmitters dopamine and serotonin.
- CAFFEINE BALANCE: Reduces negative effects of caffeine including jitters and over-stimulation while maintaining mental clarity.
What's Inside
Clean chewable formula with tropical fruit flavour and organic cane sugar. Each tablet delivers 100mg of pure Suntheanine L-Theanine. Made in Canada by Natural Factors.
Why we carry it: Natural Factors exclusively uses Suntheanine — the patented form with actual clinical research, not cheap generic L-Theanine.
How to Take
Full Ingredients
| MEDICINAL INGREDIENTS | ||||
| Serving Size: 3 Tablet | ||||
| Serving Contains: 120 Tablets | ||||
| Amount/Serving | ||||
| Suntheanine L-Theanine | 100 mg | |||
| Non-Medicinal Ingredients: Organic cane sugar, stearic acid, xylitol, silica, tropical fruit flavour, citric acid, vegetable grade magnesium stearate (lubricant). | ||||
Customer Reviews
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Questions & Answers
Research & Science
Explore the dropdown below to view peer-reviewed literature related to Natural Factors Stress-Relax Mental Calmness 100 mg (Chewable Tablets)

