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R 355.00

We've curated every product in our I DO | Nutrition shop based on their nutrigenomic properties and leading manufacturing standards. Nutrigenomics is the study of food and nutrients as one of the most important environmental modifiers of gene expression. A personalised protocol based on your unique DNA, biochemistry and symptoms can help you create optimal wellness and prevent many chronic lifestyle-related diseases. This is called 'personalised scientific wellness'.

60 capsules

L-Theanine is a non-addictive amino acid that acts as a mild, non-sedating relaxant. L-Theanine is evidenced to reduce mental and physical stress and increase feelings of relaxation.

Pair with these tests

To learn more about your unique stress response, order one of these tests online:

Pharmacological Action

Theanine is evidenced to reduce mental and physical stress and produce feelings of relaxation. Theanine is speculated to produce these effects by increasing serotonin, dopamine and gamma-aminobutyric acid (GABA), and it has micromolar affinities for AMPA, kainate, and NMDA receptors.

Product Composition

Each capsule contains the following active ingredient:

L-Theanine 300mg

Inactive ingredients: Hypromellose, magnesium silicate, magnesium stearate.

Suitable for vegans and vegetarians.

Dosage Directions

Take 1 capsule twice daily on an empty stomach.

Product Warnings

Do not use this product if you are hypersensitive (allergic) to any of the ingredients. If you are on any medication or suffering from any medical condition, it is advisable to seek medical advice before starting any new medicine, supplement or remedy. Do not exceed recommended dosages unless on the advice of a healthcare practitioner. This medicine has not been evaluated by the Medicines Control Council. This medicine is not intended to diagnose, treat, cure or prevent any disease. Health supplements are intended only to complement health or supplement the diet.

Side Effects

There are no known side effects.


There are no known contraindications.


There are no known interactions.

Pregnancy and Breastfeeding

Safety during pregnancy and whilst breastfeeding has not been established.

Storage Instructions

Store in a cool dry place below 25°C. Keep out of reach of children.



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