Douglas Laboratories formulates products with the understanding that every patient is different and that each healthcare professional brings his or her own philosophy and clinical experience into play when working with a patient. We provide a wide selection of vitamin, mineral and amino acid products to meet the unique biochemical and metabolic needs of each patient. Our selection of individual and multi-nutrient products gives the practitioner the ultimate ability to customize supplementation based on lab results, clinical presentation and other parameters to provide personalized nutrition for each patient.

Ultra Preventive®

14 unique formulas available in tablets or capsules.

  • Ultra Preventive® Product Selection Guide

  • View the Foundation Support for Healthy Living

    QÜELL Fish Oil®

    A suite of ultra-pure, supercritical CO2 extracted, omega-3 fish oils in fish gelatin softgels.

  • QÜELL Fish Oil® Product Selection Guide
  • The QÜELL Fish Oil® Difference Patient Guide
  • Dr. Jacob Teitelbaum+

    Dr. Teitelbaum is a board-certified internist and has been a nationally recognized expert in the fields of fatigue and sleep management for the past 30 years.

    +Dr. Teitelbaum is a retained consultant for Douglas Laboratories.

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    1. 99275-60X | AHCC® Plus
      AHCC® Plus
      Immune health
    2. LPA | Alpha-Lipoic Acid
      Alpha-Lipoic Acid
      Healthy blood sugar and nerve support
    3. 77304-60X | Astragalus Max-V
      Astragalus Max-V
      Traditional support for immune health
    4. 7670-60X | Ayur-Ashwagandha
      Traditional support for general wellness and stress management
    5. 202676-60X | B-Complex
      Support for energy metabolism and neurological health
    6. 201387-180X | Basic Preventive ® 5
      Basic Preventive ® 5
      Daily wellness
    7. 83901-90X | Beta 1,3 Glucan
      Beta 1,3 Glucan
      Immune and cardiovascular health
    8. 80097-100X | Cat's Claw
      Cat's Claw
      Traditional support for immune, joint and cardiovascular health
    9. CRA | Cran-Max ™
      Cran-Max ™
      Support for urinary tract health
    10. 201810-120X | Cysto Renew®
      Cysto Renew®
      Bladder support
    11. 99471-50X | D-Mannose Powder
      D-Mannose Powder
      Support for urinary tract health
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