Happy Banana®
The World's First Banana Peel Ingredient for Sleep Support
Updated June 7, 2026
Happy Banana® is the world's first proprietary banana peel extract designed to support natural sleep by promoting endogenous serotonin and melatonin biosynthesis through the tryptophan metabolic pathway, helping restore a healthy circadian rhythm.
What is Happy Banana®?
Happy Banana® is a proprietary botanical ingredient developed by TCI from banana peel using advanced extraction technology that preserves its naturally occurring bioactive compounds, including the patented marker compound Hydroxyanigorufone. Scientific studies have demonstrated that Happy Banana® enhances the tryptophan metabolic pathway, promoting endogenous serotonin and melatonin production to help relieve stress, improve sleep quality, and restore a healthy circadian rhythm.
Benefits of Happy Banana®
Happy Banana® upregulates the key genes TPH1, DDC, and AANAT, enhancing tryptophan metabolism and stimulating the body’s natural production of serotonin and melatonin. Unlike products containing exogenous melatonin, Happy Banana® supports the body’s own sleep-regulating mechanism.
Key Benefits
- Supports natural sleep onset
- Improves sleep quality
- Helps restore a healthy circadian rhythm
- Promotes endogenous serotonin production
- Enhances nighttime melatonin secretion
- Helps relieve stress and promote relaxation
- Reduces sympathetic nervous system activity before sleep
- Improves daytime alertness and vitality
- Reduces nighttime bathroom trips
Clinical Highlights
Happy Banana® has been clinically validated in a randomized, double-blind, placebo-controlled study involving 50 subjects.
Clinical Outcomes (200 mg/day for 4 weeks)
| Endpoint | Result |
| Serum serotonin | +13.9% |
| Nighttime melatonin | +43.3% |
| Night-Day melatonin difference | +209% |
| LF/HF ratio (sympathetic activity) | −27.5% |
| Daytime drowsiness | −13.9% |
| Nighttime bathroom trips | −19.0% |
Significant improvements were also observed in the Pittsburgh Sleep Quality Index (PSQI), Athens Insomnia Scale (AIS), and Sleep Disturbance Questionnaire, demonstrating enhanced sleep quality and reduced insomnia symptoms.
Awards
Happy Banana® has received multiple international innovation awards, including:
2012 Silver Medal – International Invention Award (Italy)
2012 Silver Medal – IIIC International Innovation and Invention Competition
2012 Silver Medal – Tokyo World Genius Convention & Invention Expo (Japan)
2013 Gold Medal – Geneva International Exhibition of Inventions (Switzerland)
2013 Special Award – Geneva International Exhibition of Inventions (Switzerland)
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Scientific Publication
The clinical efficacy of Happy Banana® has been published in a peer-reviewed journal.
Lee HC, Lin YK, Lin YH, Chan ST, Chiang CF. Banana Peel Extract (Happy Banana®) Promotes Circadian Rhythm Regulation and Sleep Health: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial. Journal of Depression & Anxiety. 2025;14:569.
Available Dosage Forms
Happy Banana® can be formulated into a wide variety of dietary supplements and functional foods, including:
Functional beverages
Capsules
Tablets
Stick packs
Frequently Asked Questions (FAQ)
Q1. Does Happy Banana® contain melatonin?
No. Happy Banana® does not contain exogenous melatonin. Instead, it promotes the body’s natural production of serotonin and melatonin, helping restore a healthy circadian rhythm.
Q2. What is the recommended daily intake?
The clinical study used 200 mg/day, taken approximately 2 hours before bedtime. Significant benefits were observed after 4 weeks of continuous supplementation.
Q3. Is Happy Banana® safe?
Yes. Happy Banana® has demonstrated an excellent safety profile in both preclinical and clinical studies. In a repeated-dose oral toxicity study, the Maximum Tolerated Dose (MTD) was ≥4,000 mg/kg/day, with no treatment-related mortality, toxicity, or abnormalities observed in clinical pathology or major organs. Human clinical studies also reported no product-related adverse events or clinically significant changes in hematological, biochemical, liver, or kidney function parameters.
Q4. In which countries can Happy Banana® be marketed?
Happy Banana® has established edibility or commercialization pathways in multiple markets, including the United States, European Union, Taiwan, Malaysia, Indonesia, Vietnam, the Philippines, the United Arab Emirates, and Australia. It has also received the U.S. FDA New Dietary Ingredient (NDI) notification and has been officially recognized as meeting the Australian TGA safety requirements for listed medicine ingredients.
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