NutraBio L-Theanine delivers 200mg of ultra pure L-Theanine per capsule, the amino acid found naturally in green tea that promotes calm focus without drowsiness. It works with key neurotransmitters in the brain including GABA, dopamine, and serotonin, supporting a relaxed but alert state that keeps you sharp rather than sedated or wired. Unlike stimulants or sedatives, L-Theanine supports mental performance through balance, not force. Useful on its own for stress and composure under pressure, or stacked with caffeine to smooth out jitters. Take 1 capsule 1 to 3 times daily between meals. 180 capsules.†
Supplement Facts: NutraBio L-Theanine (Per 1 Capsule)
- L-Theanine: 200mg
- 180 capsules
- Take 1 capsule 1 to 3 times daily, in divided doses, between meals
- Third-party tested for purity and potency
- California Prop 65 Warning applies.
Calm Without Drowsiness
L-Theanine is a non-essential amino acid found almost exclusively in the green tea plant (Camellia sinensis). Most people experience a calm, focused feeling rather than sedation, which is why it suits daytime use during work, training, or stressful situations. It has also been studied for supporting healthy blood pressure levels already within a normal range.†
Pairs Well With Caffeine
L-Theanine is commonly stacked with caffeine to keep the alertness while taking the edge off the restlessness. If you are caffeine sensitive, start with a lower caffeine amount alongside it. Many users notice effects within 30 to 60 minutes.†
Frequently Asked Questions
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Will it make me sleepy?
Typically no. L-Theanine promotes relaxation without drowsiness, though individual responses vary.† -
Can I take it during the day?
Yes. It is suited to daytime use and is often taken during work or anytime calm focus is needed.† -
How do I stack it with caffeine?
Many people take 200mg L-Theanine alongside their coffee or pre-workout to reduce jitters. NutraBio also makes a combined Caffeine and L-Theanine capsule if you prefer both in one.† -
Is it appropriate for tested athletes?
L-Theanine is not prohibited by WADA or NCAA.†
How to Take NutraBio L-Theanine
Take 1 capsule 1 to 3 times daily, in divided doses, between meals. Consult a physician before use if you are pregnant, nursing, taking medication, or have a medical condition. Keep out of reach of children.
Why Buy at Get Yok'd
- Real-time inventory across all six Southern California stores
- Available in Burbank, Glendale, Glendale Galleria, North Hollywood, Northridge, and Pasadena
- Authorized NutraBio retailer, carrying L-Theanine alongside the full NutraBio lineup
- Staff who can help you build a focus and stress support routine
- One of the best loyalty programs in the supplement industry: earn rewards on every purchase
Who Should Exercise Caution
- Individuals taking blood pressure medication should consult a physician
- Not for pregnant or nursing women without physician clearance
- Consult a physician before use if taking any prescription medications
- California Prop 65 Warning applies.
- Keep out of reach of children.
†These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.