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GABA + L-Theanine

GABA + L-Theanine

Ongoing stress has, unfortunately, become commonplace in our modern-day society. This type of stress induces a profound shift in the nervous system, skewing the body towards a heightened sympathetic “fight-or-flight” response and dampens our parasympathetic “rest-and-digest” response.   

Liposomal GABA with L-Theanine combines a highly bioavailable form of the neurotransmitter GABA, with the amino acid L-theanine for optimal nervous system support, helping you maintain a calm and relaxed state in an otherwise frenetic world. 

Gamma-aminobutyric acid (GABA) is the body’s main inhibitory ‘calm and connect’ neurotransmitter and produced in the brain and spinal cord. It supports emotional balance and ease, a healthy stress response, and stable nerve transmission.  

L-Theanine is an amino acid found naturally in green tea and supports relaxation, focus, and mood.  

Quicksilver Scientific delivers GABA with L-Theanine using our advanced liposomal delivery technology to help strengthen the absorption capabilities of this difficult-to-absorb molecule for fast results you can feel.*   


NET WT 1.7 FL OZ (50mL)

$37.00
$37.00
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VEGAN

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TESTED GLUTEN FREE

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TESTED ALLERGEN-FREE

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TESTED NON-GMO

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TESTED SOY PROTEIN FREE

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SUGAR-FREE

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NSF GMP CERTIFIED FACILITY

GABA + L-Theanine

  • Nervous system support 
  • Aids mood and emotional balance 
  • Supports a healthy stress response 
  • Aids whole body relaxation 
  • Supports calm and focus 

*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.

Information provided by this website or this company is not a substitute for individual medical advice. | ©Quicksilver Scientific, Inc., 2026 Louisville, CO

Take 2-4 pumps by mouth as needed. Hold in mouth 30-90 seconds before swallowing. Repeat to desired dosage or as directed by a healthcare professional. Take on an empty stomach, at least 10 minutes before meals. If pregnant or breastfeeding, consult your physician before use. Store at room temperature.

Supplement Facts
Serv. Size: 2 mL (4 Pumps) Amount Per Serv. % Daily Value
Serv. Per Container: 25
GABA (Gamma Amino Butyric Acid) 240mg **
L-Theanine 100mg
Phosphatidylcholine (from highly purified phospholipids) 134mg
**Daily Value (DV) not established
Other Ingredients:
Water, Glycerin, Ethanol, Vitamin E

A Higher Standard of Liposomal Delivery with QDS®

The Quicksilver Delivery Systems® signature trademark sets our liposomal products apart from
other companies and ensures high absorption and bioavailability.

Our products' clear consistency can only be achieved with liposomes that are small (20-100 nanometers) and stable enough to pass between cells. These small vesicles begin absorbing as soon as they hit your mouth, so you can get high absorption of the product before it is altered by the harsh processes in the digestive system.

Remember, not every liposomal supplement is created equal. Quality, chemistry, and manufacturing practices matter.

Frequently Asked Questions

What is GABA?

Gamma-Aminobutyric Acid (GABA) is the primary inhibitory neurotransmitter in the central nervous system. It functions by reducing neuronal excitability and helping maintain balance between excitation and inhibition in the brain. Adequate GABA activity is associated with a calm mental state, balanced mood, and healthy stress response.

What are the benefits of GABA supplementation?

Supplemental GABA may help promote relaxation and mental ease. Research suggests that GABA supplementation can help support:

  • A healthy response to occasional stress
  • Relaxation and mental calm
  • Healthy sleep quality
  • A balanced “fight-or-flight” stress response
What is L-Theanine?

L-Theanine is an amino acid naturally found in green and black tea leaves and certain mushrooms. It is known to cross the blood-brain barrier and modulate levels of neurotransmitters such as GABA, dopamine, and serotonin, helping promote a state of relaxed alertness.

What are the benefits of L-Theanine?

L-Theanine has been studied for its ability to support:

  • A calm but alert mental state
  • Focus and cognitive clarity
  • Relaxation without drowsiness
  • Healthy sleep patterns and mood balance
Why combine GABA with L-Theanine?

GABA and L-Theanine work synergistically to support balanced brain activity and a relaxed mental state. L-Theanine has been shown to enhance alpha brain wave activity—associated with calm focus—while GABA supports inhibitory signaling in the nervous system. Together, these compounds may help promote relaxation and emotional balance without impairing cognitive performance or alertness.

CUSTOMER REVIEWS

The reviews on this page reflect the personal experiences and opinions of our customers. They do not represent medical claims or endorsements made by the company or guarantee specific results.

Overall rating: 4.607143 / 5 from 56 reviews.

AI Generated Review Summary

Summary topics

Review topics: ["sleep","difference"].

Review highlights

Reviews

Calming Product

"I take 2 pumps of this product one hour before bed. It is definitely calming. Some nights I take four pumps. There is no side effects for me."

— R (5/5)

I feel a calmness when

"I feel a calmness when I use this. Of all the supplements this one I notice the most."

— Cynthia L. (4/5)

I use at bed time

"I use at bed time , it makes a difference to falling asleep fast"

— Kathleen L. (5/5)

This product has been an

"This product has been an asset in my sleep! I take it about an hour before going to bed and it really does help set the stage for a better night's sleep. There's a big difference if I forget it in my routine."

— Bethany A. (5/5)

I love this product. For

"I love this product. For me it is most useful to take it a few hours before bedtime when I am winding down my day. My nervous system becomes regulated enough to do my nighttime meditation, and prepare for bedtime properly. I might use it earlier in the day , if I am having an especially stressful day. I give it a high rating. Dr. JoAnne L."

— JoAnne L. (5/5)

better, safer than xanax

"I’ve tried a lot of supplements over the years, and I don’t keep anything in my stack unless it actually does something. Your Liposomal GABA with L-Theanine stays in. What I notice most is nervous system stability. It takes the edge off without sedating me. No brain fog. No weird crash. Just a smooth downshift. That’s rare. Sleep quality improves when I use it consistently. Not a knockout effect — more like my mind doesn’t try to run a board meeting at 2 a. m. It feels clean. The liposomal delivery absolutely makes a difference compared to capsule GABA. I’ve used both. This one hits faster and feels more noticeable. Taste isn’t amazing, but I don’t care. If it works, it works. For anyone serious about managing stress instead of masking it, this is a solid tool. It’s earned its place in my daily routine"

— vito m. (5/5)

I ordered 4 bottles. taking

"I ordered 4 bottles. taking 4 squirts a day, the bottle is empty in less than 7 days. I have felt no difference with 4 squirts a day. I did expect to feel calmer and more relaxed from my anxiety, but have felt nothing. Do you have any recommendations?"

— Glenn T. (1/5)

Not as good as I was hoping

"A friend recommended I try this for extra energy and calmness at the same time. It did not work that way for me. I was very tired. Of course, I realize everyone is different and what works for one person doesn't work for another."

— Deborah W. (2/5)

Relaxing

"We got this to help us relax. It does the job."

— Debra F. (5/5)

I have definitely noticed an

"I have definitely noticed an increase in my energy since I started taking this GABA supplement. I have been suffering with ME/CFS (chronic fatigue) for about 20 years, but now I am back in the gym lifting weights again! Thank you!"

— Christina W. (5/5)

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