Amino acid & compound

L-theanine

An amino acid studied for feeling calmer in stressful situations.

Evidence
C Small trials; ours is below the studied amounts
Studied for
Stress and calm focus

What studies found

Small trials suggest less stress in stressful situations. Research on theanine for focus in healthy people is limited and mixed.

How much is in our products

ProductAmount
Advanced Alpha Focus 150 mg per 2-capsule serving

In studies: 200–400 mg a day.

Our 150 mg is lower than the 200–400 mg a day used in studies.

Who should take care

Talk to your doctor first if you take medicines for anxiety, sleep or mood. Advanced Alpha Focus is for adults only. Possible side effects of the formula include upset stomach, headache or dizziness.

Talk to your doctor or pharmacist before starting a supplement if you take any medicine, are pregnant or breastfeeding, or have a health condition.

Read more in our guides

Sources

  1. Everett JM, et al. 2015. Theanine consumption, stress and anxiety in human clinical trials: a systematic review

This page is for general education and isn't medical advice. *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.