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Douglas Laboratories has been at the forefront of the nutritional health industry for over 50 years, engaging in the kind of top-notch product research and development that allows them to produce excellent science-based dietary supplements to help people improve their health. They offer one of the largest and most innovative selections of premium products as a healthcare practitioner brand and operate under a simple promise: provide the highest quality nutritional supplements available with the highest level of personal service—anywhere.
C-1000
C-1000 provides support for a healthy immune system and antioxidant support ‡
Douglas Laboratories' logo, text, trademarks, graphics, and photo images are the property of Douglas Laboratories, LLC and are used with permission. Copyright © 2026.
*FDA Disclaimer: The informatio...
C-1000
$20.00
C-Max ®
C-Max® tablets are formulated to slowly release 1,500 mg of vitamin C over an extended period of time.
Douglas Laboratories' logo, text, trademarks, graphics, and photo images are the property of Douglas Laboratories, LLC and are used with permission. Copyright © 2026.
*FDA Disc...
C-Max ®
$37.00
Calcium Citrate
Calcium Citrate supplies 250 mg of elemental calcium from calcium citrate. Calcium is a primary mineral for building the strong structure of bones and teeth.‡
Douglas Laboratories' logo, text, trademarks, graphics, and photo images are the property of Douglas Laboratories, LLC ...
Calcium Citrate
$29.50
Calcium Microcrystalline Hydroxyapatite
Calcium Microcrystalline Hydroxyapatite provides micronutrients essential for healthy bones and teeth.‡
Douglas Laboratories' logo, text, trademarks, graphics, and photo images are the property of Douglas Laboratories, LLC and are used with permission. Copyright © 2026.
*FDA Di...
Calcium Microcrystalline Hydroxyapatite
$23.50
Calcium-D-Glucarate
Calcium D-Glucarate is a supplement of D-glucaric acid bound to calcium. Calcium D-glucarate supports the body's natural defenses against environmental toxins and excess steroid hormones by way of glucuronidation.‡
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Calcium-D-Glucarate
$85.00
Cat's Claw
Cat’s Claw (Uncaria tomentosa, bark) supplies 500 mg of Cat’s Claw in a gelatin capsule.
Douglas Laboratories' logo, text, trademarks, graphics, and photo images are the property of Douglas Laboratories, LLC and are used with permission. Copyright © 2026.
*FDA Disclaimer: The in...
Cat's Claw
$27.00
Chelated Magnesium
Highly absorbable chelated magnesium provides 100 mg elemental magnesium per tablet. Magnesium is involved in energy metabolism, and is notably important in the heart, skeletal muscles, and nervous system.‡
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Chelated Magnesium
$12.50
Choline Bitartrate
Choline Bitartrate supplies 235 mg of choline from choline bitartrate in each capsule.
Douglas Laboratories' logo, text, trademarks, graphics, and photo images are the property of Douglas Laboratories, LLC and are used with permission. Copyright © 2026.
*FDA Disclaimer: The info...
Choline Bitartrate
$21.00
Chromium Picolinate
Chromium Picolinate is a trace element supplement that contains 250 mcg of chromium bound to picolinic acid, a highly biologically active form of this mineral.‡
Douglas Laboratories' logo, text, trademarks, graphics, and photo images are the property of Douglas Laboratories, LLC ...
Chromium Picolinate
$24.50
Citrus-Q10 ™ 100
Citrus-Q10™ 100 supplies naturally fermented coenzyme Q10 in a great-tasting, natural citrus-flavored chewable tablet. Citrus-Q10™ 100 contains no sugar, artificial colors or flavors, and is suitable for vegetarians.
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Citrus-Q10 ™ 100
$76.00
Co-Enzyme Q10 Softgel
Co-Enzyme Q10 softgels contain pure co-enzyme Q10 (ubiquinone). Co-Enzyme Q10 is solubilized in a base of rice bran oil and vitamin E to enhance absorption of co-enzyme Q10.
Douglas Laboratories' logo, text, trademarks, graphics, and photo images are the property of Douglas Labor...
Co-Enzyme Q10 Softgel
$64.50
Colostrum 100% Pure New Zealand (Capsules)
100% Pure New Zealand Colostrum contains 90 known health-promoting components, including antibodies, immunoglobulins, antioxidants and growth factors that support the immune system and healthy cell function. New Zealand colostrum meets high purity standards because the herds are pasture-fed and ...
Colostrum 100% Pure New Zealand (Capsules)
$58.00
Corvalen® Ribose
D-Ribose is a natural pentose sugar that is the backbone of the ATP molecular structure which supports the body's natural energy production. D-ribose in ATP (adenosine triphosphate) is naturally present in every living cell in our body. Corvalen® powder is highly soluble in either hot or cold so...
Corvalen® Ribose
$68.50
Cysto Renew®
Cysto Renew®, developed by Dr. Geo Espinosa+, is a unique combination of ingredients designed to help calm the bladder and support healthy functioning of the urinary tract system. Each ingredient contributes to the health of the bladder glycosaminoglycan layer, nitric oxide production, healthy n...
Cysto Renew®
$65.50
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