- Have questions about this product?
Ask one of our experts. - click here
Free Nutritional Advisor
Free Nutritional AdvisorSynergistic formula supports healthy mood, cognitive function and stress management
- Supports relaxation and stress management without drowsiness
- Supports healthy neurotransmitter levels
- Supports optimal mood levels with 5-HTP
Supports Relaxation.L-theanine directly stimulates the production of alpha brain waves, which creates a deep state of relaxation. Research with human volunteers has demonstrated that L-theanine creates its relaxing effect approximately 30 to 40 minutes after ingestion. (1)
Supports Cognitive Function.L-theanine stimulates alpha-brain waves, which increase mental alertness L-theanine also plays a role in the formation of gamma-aminobutyric acid (GABA), which regulates neurotransmitters and helps maintain relaxed levels of neuron activity. (2)
Supports Healthy Mood.In addition to L-theanine, L-Theanine Calm-Plex contains two additional mood-enhancing ingredients, 5-HTP and GABA. These natural compounds work synergistically to help maintain balanced neurotransmitter levels in the brain, promoting a strong sense of well-being and healthier mood.
View Certificate of Analysis »
References:
1. Evans M, McDonald AC, Xiong L, Crowley DC, Guthrie N. A Randomized, Triple-Blind, Placebo-Controlled, Crossover Study to Investigate the Efficacy of a Single Dose of AlphaWave® L-Theanine on Stress in a Healthy Adult Population. Neurol Ther. 2021;10(2):1061-1078. doi:10.1007/s40120-021-00284-x
2. Dasdelen MF, Er S, Kaplan B, et al. A Novel Theanine Complex, Mg-L-Theanine Improves Sleep Quality via Regulating Brain Electrochemical Activity. Front Nutr. 2022;9:874254. Published 2022 Apr 5. doi:10.3389/fnut.2022.874254
Supplement Facts | ||
---|---|---|
Serving Size: 1 capsule Servings Per Container: 60 |
||
Amount Per Serving | %DV* | |
Suntheanine® (L-Theanine) | 100 mg | † |
GABA | 275 mg | † |
5-HTP | 10 mg | † |
†Daily Value not established |
Rev.12.20
Suntheanine ® is a registered trademark of Taiyo International, Inc. Use of Suntheanine® is protected by US Patent NO. US 6,589,566 B2-
Other Ingredients: Capsule (gelatin, water), cellulose, magnesium stearate, silicon dioxide, stearic acid. Contains ingredients made from soy.
- Contains No: Gluten, casein.
- Suggested Daily Use: As a dietary supplement, take 1 to 2 capsules as needed, preferably between meals or as recommended by your health care professional.
- Note: Do not use if tamper-evident seal is broken or missing. Close tightly after each use.
- KEEP OUT OF REACH OF CHILDREN
- Synergistic Formula Supports Relaxation and Mood. Combining L-theanine, GABA and 5-HTP best supports a calm mood, relaxation and neurotransmitter activity. L-theanine is one of the best compounds to support relaxation because it does not cause drowsiness like many others do.
- High Potency. ProHealth’s L-Theanine Calm-Plex uses Suntheanine® brand L-theanine, the purest form of L-theanine available, to deliver maximum calming effects.
- Meets US Pharmacopeia Standards. Our L-Theanine Calm-Plex ingredients meet US Pharmacopeia standards.
- Free of Unwanted Ingredients. L-Theanine Calm-Plex doesn’t contain yeast, wheat, gluten, salt, dairy, eggs, peanuts, tree nuts, fish, shellfish, soy, corn, dye or preservatives.
- Quality Manufacturing Practices. All of our products are manufactured in an FDA-registered, GMP-certified facility.
- Third-Party Tested in the USA. Every batch is third-party tested in US laboratories to ensure the highest quality, purity and potency. Certificates of Analysis are available.
which supplements are right for you?
Our Longevity Health Pros are just a text away with supplement & dietary answers, guidance & support.

Changed My Life
"This supplement has completely changed my mental for the better. I thought I needed heavy mental help and medications, but this has given me clarity, balance and calmness I haven't experienced with any other product. This is now and forever will be my life saver and daily regimen. Thank you so much!"
- Lamiya C., Verified ProHealth Longevity Customer