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Mt. Aso in Kyushu, Japan. Home to Golden Aojiru.
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From the Island of Kyushu, Japan

The subtropical climate on the island of Kyushu provides the ideal environment for naturally grown young barley grass. Nourished by the natural springs surrounding Japan's most active volcano, Mt. Aso, Kyushu’s mineral-rich farmland is home to generations of farmers who cultivate this nutritious crop.

Vegan, gluten-free, and non-GMO, Golden Aojiru is a natural, pesticide-free, and additive-free way to consume essential vitamins and minerals. The safe and convenient powder mixes easily into water or other beverages and foods.

With a delicious taste similar to the popular flavor of matcha tea, Golden Aojiru is favored over other green grass supplements for both its taste and texture, making it the perfect ingredient in a variety of healthy, delicious recipes.


Since the introduction of aojiru in the 1940s, Japanese consumers have enjoyed the many benefits of this all-natural nutritional product. It is widely consumed by both young and old in Japan, a country known for its healthy people and the highest life expectancy on Earth.

After generations of prominence as one of the most popular natural dietary supplements, plus decades of research and product development, Golden Aojiru has emerged as the no. 1 best seller for young barley grass in Japan.


24 Hours: Field to Finish
Local Kyushu farmers harvest the young barley grass then package it within 24 hours or less for ultimate freshness and authentic flavor. Our “fresh pack method” ensures that the powder is sealed and packed without oxidation, maintaining the highest freshness possible.

We are committed to providing flavor and freshness in every package of Golden Aojiru. 

Our authentic ingredients are:
100% cultivated in Japan.
100% grown without the use of agrochemicals.
100% processed and packaged in Japan with the highest levels of quality assurance.


Quick Dissolve Technology (QDT™) • Quick Dissolve Granules (QDG™)

Our patent-pending process improves the solubility of our young barley grass powder without any additives, providing a smoother and better taste experience.



From sowing to harvesting, Golden Aojiru green barley is cultivated without pesticides throughout the entire cycle. It is also regularly tested for 308 residual agrochemicals.


According to the CDC, only 10% of adults in the U.S. consume the recommended daily allowance of fruits and vegetables. For adult women, that's at least 1 1/2 cups of fruit and 2 1/2 cups of vegetables per day. Adult men should consume at least 2 cups of fruit and 3 1/2 cups of vegetables per day.


Though most people desire to eat a healthy diet with adequate nutrients, the challenges of shopping and preparing fresh produce—plus the higher costs and inconvenience—can make this goal seemingly unachievable, especially for those with busy lives.


Golden Aojiru solves this problem with a quick, convenient, and easy way to supplement your daily intake of fresh fruits and vegetables.

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At Nihon Yakken, Japan’s leading green grass drink brand, we’re honored to bring our Golden Aojiru Young Barley Grass Powder to the U.S. Our dedication to quality and wellness begins with our company name:

Embodying the Japanese values of diligence, empathy, customer service, and continuous improvement

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Providing qualified, evidence-based solutions with the highest safety and quality standards

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Promoting healthy minds, bodies, and holistic wellness lifestyles

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To support your wellness lifestyle with products and services that help you enjoy a healthy body and mind.

While the average life expectancy of humankind has increased significantly, many health conditions such as cancer, high blood pressure, and stroke have also increased. Health is no longer just about living a long life—it’s about creating healthy habits, being active, and making wellness part of your lifestyle.

To become a company you trust to deliver healthy, differentiated, and Japanese-inspired values.


As Japanese cuisine and culture continues to grow in global recognition, we strive to bring its time-tested benefits to your doorstep so you can live your healthiest, most well-balanced life.


To maintain the highest safety standards for the highest quality products


To continue improving and developing innovative, healthful products by pairing traditional Japanese cuisine with the latest scientific findings and technology


To prioritize your satisfaction as our valued customer and support your well-being with every product, service, and interaction

From Japan,

Wishing for a world filled with vibrant, healthy smiles.

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