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In an effort to provide you with only the highest quality products, Zengia only distributes CGB products. CGB's products are derived from 5 hospitals, 2 medical universities, and 45 years of experience.

“You can trace every sickness, every ailment, and every disease to a mineral deficiency.”
-Linus Pauling, Two Time Nobel Prize Winner

All Natural

Full of minerals, nutrients, amino acids and enzymes, our products provide a multitude of health benefits. All of our products are free of pesticides, pollutants & chemicals!

Our Dietary Supplements

All of our foods are potent natural adaptogens that restore the body's balance and homeostasis, thus helping the body readjust better to stress or disease conditions.

Eastern Medicine

Over 90% of all diseases are chronic, or stem from chronic conditions. Towards these diseases, modern Medicine has found effective means to alleviate the signs or symptoms but less often are the roots addressed. Eastern Medicine on the other hand attempts to heal the whole patient rather than just the disease symptoms


Our group seeks to promote and restore health through the use of a comprehensive range of products that represent the cutting edge of 21st century biomedical technology. We believe that the most effective way to achieve this is to combine the best practices from both Western and Eastern Medicines.
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Evening Primrose Oil

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Evening Primrose Oil
Evening Primrose Oil
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Evening Primrose, a native North American herb, is so called for its primrose yellow flowers that blossom in the evening. Evening Primrose Oil contains gamma-linolenic acid (GLA), an important precursor of the hormone-like prostaglandin E1 (PGE1), which plays active roles in regulating human physiological functions, especially in females. Supplementing proper GLA helps regulate cardiovascular function and toning in both genders as well as supports a healthy skin.

We use only the highest quality oil from North America extracted by a proprietary cold pres technique, never exceeding 104?F (40?C). This gentle refining process, which doesn't use any harmful solvent, removes unwanted pesticides and heavy metals while retaining its natural potency. Only pharmaceutical GMP conditions that meet the WHO Codex standards are used.

Our stringent quality control requirement for both raw material selection and finished product testing allows us to guarantee the highest quality and product stability available anywhere. They clearly differentiate our product from any others currently available in the market.

90 liquid gelcaps per bottle / 500mg per serving

certified organicOur Evening Primrose Oil has passed rigorous standards and has been CERTIFIED ORGANIC by Quality Assurance International (QAI).


Evening Primrose Oil's Health Benefits*

Practitioners of Eastern medicine commonly prescribe Evening Primrose Oil to help:
  • decrease PMS symptoms
  • combat Diabetes
  • regulate Cardiovascular functions
  • treat nerve disorders
  • Remember, all of our supplements are natural Adaptogens!
    Adaptogens are food supplements or ingredients that restore the body balance and homeostasis, thus helping the body readjust better to stress or disease conditions.

    Each has a main focus of action, on a particular system, but each also interfaces actively with all major systems or functions in the body, thus explaining the multitude of the health benefits seen.

    (learn more)

    Evening Primrose Oil (EPO)

    Evening primrose is a plant with yellow flowers that's native to North America. Its medicinal components are found in the seed-extracted oil, which contains essential fatty acids: including linolenic and gamma linolenic acid (GLA or γ-linolenic). Essential fatty acids such as GLA are required by the body for growth and development, and must be obtained from the diet. However, GLA is often deficient in the Western diet and is needed to encourage the production of prostraglandins. Some experts suggest that low levels of essential fatty acids may increase the symptoms of premenstrual syndrome (PMS), which is why evening primrose oil is used extensively to alleviate PMS symptoms. Aside from PMS, diabetes is another adverse effect of low prostraglandin production.

    Evening primrose oil has also been used to treat menopausal symptoms, asthma, and has been shown to reduce high blood cholesterol levels. Research conducted in Great Britain has indicated that evening primrose oil can also be medicinally useful in the treatment of nerve disorders, such as multiple sclerosis and rheumatoid arthritis. The oil can also help relieve dry eyes, brittle nails, and acne when combined with zinc. Evening primrose oil has been used since the 1930s for eczema (a condition in which the skin becomes inflamed, itchy, or scaly because of allergies or other irritation).

    Evening primrose oil is valued for its antioxidant properties. Antioxidants are substances that counteract the damaging effects of oxidation in living tissue. A team of Canadian researchers has recently identified the specific antioxidant compounds in evening primrose oil; one of them, a yellow substance known as catechin, appears to inhibit the growth of cancerous tumors and lower the risk of heart disease.

    Our Evening Primrose Oil's Superiority ?

    Certified Organic
    certified organicOur Evening Primrose Oil has passed rigorous standards and has been CERTIFIED ORGANIC by Quality Assurance International. Cold Press technology is used to to preserve all of EPO's bio activities.

    Safety and Quality Control

    We have vowed to bring to you only the safest products that have been manufactured through rigorous quality control and meticulous attention to every detail during the production process. To the extent possible, all our ingredients are natural and safe for internal consumption. All raw materials are carefully screened for cleanliness and exact specifications. Each manufacturing step has its own check point. Not only must our manufacturing process exceed acceptable GMP (Good Manufacturing Practice), but in all instances, all products must exceed our own internal standards, which are even more rigorous.

    Evening Primrose Oil Precautions & Side Effects!

    We discourage people with epilepsy to use Evening Primrose Oil as there have been reports of EPO reducing the effectiveness of epilepsy medications.

    Evening primrose oil is generally well tolerated, but occasionally it can produce nausea, dyspepsia, and headache.

    Please consult your physician before using EPO on children.

    Other Names for Evening Primrose Oil

    • Oenothera biennis
    • King's Cureall

    Current Reviews: 0 (Read / Write your own)

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    *None of the statements made on this website have been approved by the FDA. By law, neither Zengia, LLC nor Chang Gung Biotechnology (Taiwan) may claim that any of the products on this website are intended to diagnose, treat, cure or prevent any disease.

    **Neither Zengia, LLC nor Chang Gung Biotechnology endorses or is responsible for any content or claims made by the 3rd party articles and research reports listed on this website. They are provided as informational use only and do not express the views of Zengia.com nor the views of Chang Gung Biotechnology, Corp (Taiwan). Due to copyright restrictions, headlines and abstracts have been condensed and unless otherwise noted, are only excerpts of 3rd party materials. All resources and references are cited. Users should refer to the original published version for the full article and abstract. Please visit policies page for more. Thank you.

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