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Allergy Research Group

For more than 40 years, Allergy Research Group has provided healthcare practitioners with the highest quality, cutting-edge nutritional supplements available.
Allergy research group products

Originating with the ground-breaking oxidant/antioxidant work of Stephen Levine, Ph.D., Allergy Research Group was one of the industry’s first to introduce truly hypoallergenic products to the United States.

Check out some of the most prescribed products below.

200mg of Zen
200 mg of Zen
Contains gamma-aminobutyric acid (GABA) and L-theanine, an amino acid derivative found naturally in green tea. Together they help support healthy moods and a feeling of relaxation without sedation, whether during the day or the night.*
Vitamin D3 Complete 5000
Vitamin D3 Complete 5000
Vitamin D3 balanced with pre-formed vitamin A for improved utilization and mucosal immunity.* Optimized with a highly bioavailable form of vitamin K2 (menaquinone-7) and tocotrienols.
Nattokinase 100mg
Nattokinase NSK-SD
Allergy Research Group introduced NSK-SD to the US market in 2002. It has established standardization and quality levels for all nattokinase. Provides nutritional support for the maintenance and enhancement of normal healthy endogenous fibrinolysis.*

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