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Endeavour Co., Ltd. (株式会社Endeavour)

Teaflex Metabolism Boosting Tea | Diet Green Tea | 90g

Teaflex Metabolism Boosting Tea | Diet Green Tea | 90g

Teaflex metabolism boosting tea is Japan's first and only functional labeled green tea combining HMPA and plant-based lactic acid bacteria K-1 to help reduce visceral fat and waist circumference while improving bowel regularity. This convenient powder formula delivers 23mg of HMPA and 50 billion K-1 lactic acid bacteria per serving, enhanced with vitamins and fiber to support your weight management journey naturally and deliciously.

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Regular price $62.45 USD
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Key Takeaways

Dual Functional Ingredients

This metabolism boosting tea contains 23mg HMPA (rice bran polyphenol metabolite) and 50 billion plant-based K-1 lactic acid bacteria per serving for comprehensive metabolic support.

Simple Daily Ritual

Mix one measuring spoon (3g) with 150ml water or hot water once daily. Enjoy hot or cold—delicious fresh green tea flavor.

Clinically Validated

HMPA shown in studies to reduce visceral fat area by approximately 4.2 cm² after 12 weeks. K-1 probiotics clinically demonstrated to improve bowel frequency.

Quality Assured

Manufactured in a GMP-certified facility in Japan with 6 additive-free formulation: no artificial sweeteners, preservatives, synthetic colors, emulsifiers, or thickeners.

Best For

Those with BMI 25-30 seeking to reduce belly fat and waist circumference, or experiencing irregular bowel movements and digestive discomfort.

Trusted in Japan

Achieved #1 ranking in 23 Rakuten categories including Diet Tea, Diet Drink, and Diet Green Tea. 98% of Tokyo cafe staff rated it delicious in taste surveys.

Why It Works

Benefits

Teaflex is a Japanese functional labeled food that combines HMPA and K-1 probiotics to support metabolism and digestive health.

1

Reduces Visceral Fat & Waist Circumference

As a fat burning green tea, Teaflex's HMPA activates AMPK enzymes in your body, promoting energy metabolism of carbohydrates and fats. Clinical studies demonstrate that daily consumption of 23mg HMPA for 12 weeks reduces visceral fat area and waist circumference in individuals with elevated BMI.

Clinically validated
2

Improves Bowel Regularity

Plant-based lactic acid bacteria K-1 (L. casei 327), derived from Japanese rice, survives stomach acid to reach intestines intact. These 50 billion probiotic cells stimulate serotonin secretion and enhance intestinal peristaltic movement, supporting improved bowel frequency and comfort.

Research-backed ingredient
3

Supports Daily Nutritional Needs

Beyond functional ingredients, Teaflex includes 5 essential vitamins—B1, B2, B6, Niacin, and Folic Acid—plus Vitamin C and dietary fiber. These nutrients support energy metabolism and help fill nutritional gaps common in modern busy lifestyles.

11 health-supporting ingredients
4

Enjoyable Daily Wellness Ritual

Unlike supplements that feel like medicine, Teaflex is a genuinely delicious matcha-based green tea with fresh green aroma. 98% of Tokyo cafe professionals rated it delicious, making it easy to maintain as a daily habit without willpower fatigue.

98% taste approval rating

The Science

How It Works

Understanding how Teaflex's dual functional ingredients support your body's natural processes.

HMPA Activates Fat Metabolism

HMPA Activates Fat Metabolism

Teaflex Green Tea features two scientifically validated functional ingredients working synergistically. HMPA (3-(4-Hydroxy-3-Methoxyphenyl) Propionic Acid) is the active metabolite of various polyphenols, including coffee chlorogenic acid and citrus hesperidin.

Unlike regular polyphenols, HMPA is directly absorbed without depending on gut bacteria conversion, maximizing fat metabolism efficiency. Clinical studies show that 23mg of HMPA consumed daily for 12 weeks reduced visceral fat area by approximately 4.2 cm² compared to placebo groups.
K-1 Probiotics Enhance Gut Function

K-1 Probiotics Enhance Gut Function

The plant-based lactic acid bacteria K-1 (L. casei 327), derived from Japanese rice, survives stomach acid to reach the intestines intact. These 50 billion probiotic cells help regulate intestinal environment by producing lactic and acetic acids that stimulate serotonin synthesis and enhance peristaltic movement.

This dual-action formula addresses both fat reduction and digestive health simultaneously.
Synergistic Vitamin & Fiber Support

Synergistic Vitamin & Fiber Support

Teaflex combines both water-soluble and insoluble dietary fibers from isomaltodextrin and apple fiber, creating a balanced matrix that supports digestive health.

The 5 B-vitamins (B1, B2, B6, Niacin, Folic Acid) act as essential cofactors in energy metabolism pathways, helping your body efficiently convert nutrients into usable energy. Vitamin C provides antioxidant support.

The Science

Research & Evidence

What clinical research tells us about the key functional ingredients.

HMPA Clinical Study Results

HMPA Clinical Study Results—Clinical trials conducted on HMPA demonstrate its effectiveness for visceral fat reduction. In studies involving participants with BMI 25-30, daily intake of 23mg HMPA for 12 weeks resulted in measurable reduction of visceral fat area (approximately 4.2 cm²) and waist circumference compared to placebo groups. The mechanism involves AMPK activation, which promotes energy expenditure from fat and carbohydrate stores.

K-1 Probiotic Clinical Data

K-1 Probiotic Clinical Data—Research on heat-killed Lactobacillus casei subsp. casei 327 (K-1) demonstrates significant improvements in bowel function. In a randomized, double-blind, placebo-controlled parallel-group study with healthy volunteers, K-1 intake increased weekly bowel frequency from 3.7 to 5.0 times (vs. 3.6 to 4.3 in placebo), increased bowel days from 3.7 to 4.6 per week, and increased stool volume from 9.8 to 15.8 units per week.

Quality Manufacturing Standards

Quality Manufacturing Standards—Teaflex is manufactured in a GMP-certified facility in Japan, ensuring pharmaceutical-grade quality control standards. The product is registered as a Functional Labeled Food (機能性表示食品) with Japan's Consumer Affairs Agency, meaning its health claims have been reviewed and accepted based on scientific evidence. The formulation is free from 6 common additives.

A Note on Evidence: We present research on ingredients, not specific product claims. Individual results may vary. This supplement is not intended to diagnose, treat, cure, or prevent any disease.

Consumer Validation

Market Leadership

Teaflex has achieved #1 ranking in 23 Rakuten marketplace categories as of February 2025, including Diet Tea, Diet Drink, Diet Green Tea, and overall Diet categories.

Rakuten ranking data (February 2025)
Taste Approval

In a taste survey of 50 Tokyo cafe professionals, 98% (49 out of 50) rated Teaflex as delicious.

Consumer taste survey (February 2025, n=50)

About Brand Story

Endeavour Co., Ltd.

Endeavour Co., Ltd.

Endeavour Co., Ltd. — established in November 2023 in Osaka — is the innovative D2C beauty venture of I-ne Corporation, the publicly traded company behind hit brands BOTANIST and YOLU. Created to rapidly develop new skincare and wellness brands through agile, trend-driven marketing, Endeavour has already launched multiple successful product lines.

Their portfolio includes PORELOGY pore-care cleansing balms, SKN REMED doctor's skincare featuring advanced retinol formulations, BiRyu beauty-acupuncture-inspired serums, and Teaflex functional teas with clinically-studied ingredients for sleep quality and weight management. Each brand reflects I-ne's proven expertise in creating science-backed, consumer-focused wellness products.

Our Curation Process

Why We Selected This Product

Every product at Naturacare undergoes rigorous evaluation before joining our collection.

革新性

Innovation

Japan's first and only functional green tea combining both HMPA and plant-based K-1 probiotics. This isn't another generic diet tea—it's a breakthrough formulation registered as a Functional Labeled Food with clinically validated dual-action benefits.

透明性

Transparency

Full ingredient disclosure with exact functional ingredient amounts per serving: 23mg HMPA and 50 billion K-1 bacteria clearly stated. Complete additive-free formulation with all ingredients listed on label.

品質

Quality Assurance

Manufactured in a GMP-certified facility in Japan with strict quality control. Registered with Japan's Consumer Affairs Agency as a Functional Labeled Food, requiring submission of scientific evidence for health claims.

Our Promise: Our Promise:

We searched extensively for a functional weight management product that combines efficacy with enjoyability. Teaflex stood out because it transforms the typically unpleasant experience of diet supplements into a genuinely delicious daily ritual. The dual-action formula targeting both visceral fat and digestive health addresses the interconnected nature of metabolic wellness.

Why Japan

The Japanese Advantage

Japan's supplement industry operates under some of the world's strictest quality standards. Combined with a cultural dedication to craftsmanship and centuries of wellness traditions, Japanese supplements represent a level of quality that's difficult to find elsewhere.

Rigorous Quality Standards

Japanese regulations require comprehensive testing at every stage of production, with standards that often exceed international requirements.

GMP-Certified Manufacturing

All our products come from facilities that meet Japan's strict GMP (Good Manufacturing Practice) certification requirements.

Centuries of Tradition

Many Japanese supplements draw on ingredients and formulations refined over generations, combining ancient wisdom with modern science.

Transparent Sourcing

Japanese manufacturers maintain complete traceability, so you know exactly where every ingredient comes from.

Directions

How to Use

Simple daily routine for optimal results.

Daily Dosage: Mix 1 measuring spoon (approximately 3g) with 150ml of water or hot water once per day
Timing: Consume at the start of your day as a morning beverage for optimal results, though any time is acceptable
Preparation Method: Dissolve powder completely in water or hot water; can be enjoyed hot or cold
Duration: Continue daily consumption for at least 12 weeks to experience full functional benefits
Important Note: Do not exceed the recommended daily amount; excessive consumption may cause temporary loose stools

Tips for Best Results

  • Consistency is key—drink at the same time daily to build a sustainable habit
  • Morning consumption is popular as a refreshing start that supports daytime metabolism
  • Can replace your regular morning tea or coffee for added functional benefits
  • Store powder in a cool, dry place; keep the resealable pouch tightly closed
  • Allow 8-12 weeks for visible results in waist circumference and visceral fat
  • Digestive improvements typically appear within 2-4 weeks of regular use

What's Inside

Ingredients

Clean formulation with dual functional ingredients and essential nutrients.

23mg

HMPA (3-(4-Hydroxy-3-Methoxyphenyl) Propionic Acid)

Polyphenol metabolite from rice bran fermentation | Activates AMPK for fat metabolism

50B

Plant-Based Lactic Acid Bacteria K-1

L. casei 327 derived from Japanese rice | 50 billion cells per serving | Supports digestive regularity

6

Essential Vitamins

B1, B2, B6, Niacin, Vitamin C, plus Folic Acid | Supports energy metabolism and daily nutritional needs

Ingredients: Isomaltodextrin (manufactured in Japan), matcha green tea, rice bran ferment, plant-based lactic acid bacteria powder (sterilized), allulose, apple fiber, alanine, pullulan, niacin, vitamin C, vitamin B2, vitamin B6, vitamin B1, flavoring, folic acid

Allergen Information: Contains: Apple. Free from: Milk, egg, wheat, peanut, buckwheat, shrimp, crab, soy (major allergens as defined by Japanese food labeling standards)

Important Information

Safety & Precautions

Please read before use.

Allergies

Individuals with apple allergies should not consume this product. Check the full ingredient list if you have food sensitivities.

Pregnancy & Nursing

This product is not designed for minors, pregnant women (including those planning pregnancy), or nursing mothers. Consult your healthcare provider before use.

Medications

If taking prescription medications, particularly diabetes or thyroid medications, consult your physician before consumption.

Dosage

Do not exceed the recommended daily intake; overconsumption may cause abdominal discomfort or loose stools.

Discontinue Use

Discontinue use and consult a physician if you experience any adverse reactions.

Disclaimer

This is a functional food, not a medication; it does not cure or prevent diseases.

Storage

Store in a cool, dry place away from direct sunlight and high humidity. Keep out of reach of children. Consume promptly after opening.

Details

Product Specifications

Product Name
Teaflex Metabolism Boosting Tea | Diet Green Tean | 90g
Brand
Endeavour Co., Ltd.
Contents
90g powder (30 servings, ~1-month supply)
Serving Size
3g (1 measuring spoon)
Servings Per Container
30 servings
Net Weight
90g
Form
Powder
Country of Origin
Japan
Manufacturing
GMP-certified facility

Questions

Frequently Asked Questions

Teaflex is specifically formulated as a metabolism boosting tea with HMPA, a functional ingredient clinically shown to activate AMPK enzymes that regulate energy metabolism. Unlike regular green tea that relies solely on catechins, Teaflex provides 23mg of directly absorbable HMPA per serving for targeted metabolic support, plus 50 billion probiotics for digestive health.
For metabolism support, look for functional beverages with clinically validated ingredients. Teaflex combines HMPA (shown to reduce visceral fat in clinical studies) with K-1 probiotics (shown to improve bowel regularity). As Japan's first functional green tea with this dual formulation, it offers comprehensive metabolic support in a delicious, easy-to-prepare drink.
The most effective teas for weight management contain clinically studied functional ingredients rather than relying on traditional claims alone. Teaflex is registered as a Functional Labeled Food in Japan, meaning its visceral fat reduction and digestive improvement claims are backed by submitted scientific evidence. The combination of HMPA and K-1 probiotics targets both fat metabolism and gut health.
No tea replicates prescription medication mechanisms, and such comparisons should be approached carefully. Teaflex works through AMPK activation (via HMPA) to support natural fat metabolism, not through appetite suppression or GLP-1 pathways. It's designed as a functional food for individuals with BMI 25-30 seeking gradual, sustainable support for weight management goals.
Naturacare ships Teaflex directly from Japan with international delivery available. We guarantee authentic products stored properly. Our customer service team can answer questions about shipping times to your location and help ensure you receive genuine Japanese functional food products.
Teaflex has achieved #1 ranking in 23 Rakuten marketplace categories in Japan, including Diet Tea, Diet Drink, and Diet Green Tea. This market validation, combined with its unique status as Japan's only functional green tea with HMPA and K-1 probiotics, makes it a standout choice for those seeking evidence-based metabolic support.
Teaflex works through two mechanisms: HMPA activates AMPK enzymes that promote the breakdown of stored fats and carbohydrates for energy, while K-1 probiotics enhance intestinal function for better nutrient processing and elimination. This dual approach targets both fat metabolism and digestive efficiency for comprehensive weight management support.
Look for clinically studied functional ingredients with specific dosages disclosed—not vague proprietary blends. Teaflex transparently provides 23mg HMPA and 50 billion K-1 probiotic cells per serving. Also prioritize products with functional food certification (like Japan's 機能性表示食品 status), GMP manufacturing, and clean formulations free from artificial additives.