L-Theanine & GABA

In the L-Theanine & GABA collection we bring together food supplements with these two amino acids, alone or in combined formulas, from brands such as Thorne, NOW Foods, KAL, Solaray, Zeinpharma, Nutergia and Suravitasan. You will find capsules, orally dissolving tablets, powder and liposomal liquid, with several vegan options.

L-theanine

L-theanine is an amino acid naturally found in tea leaves (Camellia sinensis), especially green tea. In supplements it comes in doses of 100 to 500 mg per capsule, alone or combined with GABA, magnesium or B vitamins.

GABA

GABA (gamma-aminobutyric acid) is an amino acid that the body produces itself. In supplements you will find it in capsules, tablets and powder, in doses of 100 to 750 mg. PharmaGABA® is a form of GABA obtained by natural fermentation.

Combined formulas

Some formulas combine L-theanine and GABA with other nutrients and plant extracts, such as vitamin B6, magnesium, taurine, 5-HTP, ashwagandha or lemon balm.

Vitamin B6 and magnesium

Vitamin B6 and magnesium contribute to normal functioning of the nervous system and to normal psychological function.

How to choose

What to check on the label

Check the amount of L-theanine or GABA per daily serving, the format (capsule, tablet, powder or liquid) and the other ingredients in the formula. Use the filters to choose by brand, format or availability.

Precautions

These supplements are not recommended during pregnancy and breastfeeding, or for children without advice from a health professional. If you take medication, especially sedatives, antidepressants or blood pressure medication, talk to your doctor or pharmacist before starting. Some formulas also contain 5-HTP, St John's wort or melatonin: read each product's composition and do not take formulas with melatonin before driving.

See also the Stress and Relaxation and Sleep collections.