GABA Trex 60ct

(1 customer review)


GABA Trex chewable tablets containing L-theanine, an amino acid shown to reduce stress.


The Science

GABA Trex by NeuroScience focuses on the primary excitatory neurotransmitter in the brain. „Glutamatergic signaling underlies mechanisms related to anxiousness and stress.



  • Glutamate

Glutamate, anxiousness, and stress 

Glutamate is associated with anxiousness and stress. 

  • „Stress activates the hypothalamus-pituitary-adrenal (HPA) axis which releases glucocorticoids that affect brain function. 
  • „Studies have shown that the brains of both pediatric and geriatric populations are particularly susceptible to stress. 

L-theanine acts as a glutamate receptor antagonist. 

  • „L-theanine binds to glutamate receptors (AMPA, kainate, and NMDA receptors) and blocks the binding of glutamate to its receptors.

L-theanine improves sleep efficiency 

The effects of L-theanine were assessed in randomized, double-blind, placebo-controlled studies. 

  • In individuals 8-12 years of age, L-theanine (200 mg) twice daily (morning and afternoon) significantly increased sleep efficiency (percentage of night spent sleeping restfully) and reduced nocturnal motor activity.
  • In adults, single administration of L-theanine (200 mg) significantly reduced feelings of stress under mental strain. 


Amino Acid:

  • L-theanine

1 review for GABA Trex 60ct

  1. Wesley

    Though I don’t typically believe in 5 star ratings, these products certainly deserve at least 4.5 stars! I have personally used them for over 12 years and absolutely love them! HPA axis Neuro/Endo testing has become a mainstay in establishing baseline neurotransmitter and hormone values while enabling our health coaches to implement neurotransmitter modulation protocols for all of our clients. I highly recommend taking your health and wellness to the next level while incorporating testing into your program.

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