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  1. Multiple Sizes Available FREE Shipping Douglas Laboratories - Corvalen
    Natural D-ribose supplement*
    *Results May Vary Learn More

    Starting at: $42.80

  2. FREE Shipping Corvalen M
    D-ribose with magnesium and malate*
    *Results May Vary Learn More
    EarthTurns: $62.80
  3. FREE Shipping Corvalen OPC
    Supports healthy aging*
    *Results May Vary Learn More
    EarthTurns: $43.00
  4. FREE Shipping d Mannose Powder
    Supports normal urinary tract health*
    *Results May Vary Learn More
    EarthTurns: $51.40
  5. FREE Shipping Effer C
    Corn-free vitamin C, specially buffered with calcium, magnesium, and potassium*
    *Results May Vary Learn More
    EarthTurns: $26.40
  6. Multiple Sizes Available FREE Shipping Douglas Laboratories - G.F.S.-2000
    Phytonutrient blend of grasses, vegetables, botanicals, and probiotics*
    *Results May Vary Learn More

    Starting at: $67.60

  7. Multiple Sizes Available FREE Shipping Intestamine
    Nutritional support for a healthy GI tract*
    *Results May Vary Learn More

    Starting at: $43.60

  8. FREE Shipping Klean Isolate
    Provides 20 grams of whey protein isolate per serving*
    *Results May Vary Learn More
    EarthTurns: $48.00
  9. FREE Shipping L Glutamine FOS
    Supports the GI system*
    *Results May Vary Learn More
    EarthTurns: $57.00
  10. FREE Shipping L Glutamine Powder
    Providing 4,000 mg of pure L-glutamine per scoop*
    *Results May Vary Learn More
    EarthTurns: $65.60
  11. FREE Shipping Organic Greens Reds
    All-natural blend of organic grasses, fruits and vegetable powders*
    *Results May Vary Learn More
    EarthTurns: $48.80
  12. FREE Shipping Ultra Protein Plus Chocolate Almond
    Chocolate pea protein powder*
    *Results May Vary Learn More
    EarthTurns: $56.80
  13. FREE Shipping Ultra Protein Plus Vanilla
    Vanilla pea protein powder*
    *Results May Vary Learn More
    EarthTurns: $56.80
  14. FREE Shipping Vitamin C Crystals
    Corn-free vitamin C (ascorbic acid) in a powder*
    *Results May Vary Learn More
    EarthTurns: $21.00

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Douglas Laboratories

Professional Supplements

Douglas Laboratories has been at the forefront of the nutritional health industry for over 50 years! They have been dedicated to researching, developing and manufacturing superior-quality, science-based dietary supplements to help people improve their health and overall wellness.

Douglas Laboratories offers one of the largest and most innovative selections of premium products in a comprehensive range of forms manufactured in GMP–compliant, state–of–the–art facilities.

Douglas Labs provides some of the very best products available, providing science-based products backed by solid research and development.

At EarthTurns.com we are excited to be able to offer such an extensive selection of Douglas Labs supplements!