Douglas Laboratories

  • Highest sourcing standards for exceptional purity, free from contamination, best absorbability
  • GMP-compliant manufacturing facility; third-party, NSF International registered and inspected for good manufacturing practices
  • An approved producer of NSF certified-for-sport products with an ISO-accredited internal quality laboratory
  • Research-based ingredients to create safe, effective nutritional products for our doctors and health-conscious consumers.
  • Third party laboratory testing to ensure purity and potency

Best Douglas Laboratories Supplements

#1 Real Supplements Rated Best in 2020
Douglas Laboratories Multi-Probiotic 40 Billion | Provides Probiotics and Prebiotics to Support Gut Microflora and Immunity* | 60 Vegetarian Acid-Resistant Capsules
156 Reviews
Douglas Laboratories Multi-Probiotic 40 Billion | Provides Probiotics and Prebiotics to Support Gut Microflora and Immunity* | 60 Vegetarian Acid-Resistant Capsules
  • Immune Health: Offers a synbiotic blend of 16 strains that help to support immune health by balancing intestinal microflora.*
  • Shelf Stable: This formula is shelf stable and does not require refrigeration to maintain culture viability.
  • Digestive: Our digestive formulas are developed to support G.I. health and its highly complex ecosystem.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future.*
#2 Real Supplements Rated Best in 2020
Douglas Laboratories - Ultra Preventive 50+ - Unique Multivitamin and Mineral Supplement Formulated for Cognition, Vision, and Healthy Aging - 60 Tablets
89 Reviews
Douglas Laboratories - Ultra Preventive 50+ - Unique Multivitamin and Mineral Supplement Formulated for Cognition, Vision, and Healthy Aging - 60 Tablets
  • Supports Healthy Aging: Ultra Preventive 50+ is a specially formulated combination of important vitamins, minerals, antioxidants and a proprietary fruit blend to support healthy aging in adults age 50.*
  • Supports Heart, Vision, & Memory: This product features CoQ10 for metabolic energy and heart health, lutein and zeaxanthin for healthy vision, lycopene for cellular support, bioavailable B vitamins, and Neurophenol, a proprietary blend of blueberry and grape seed extract clinically studied for memory in healthy aging adults.*
  • Foundation: Dietary supplement formulated to support the unique biochemical and metabolic needs of each individual.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future.*
#3 Real Supplements Rated Best in 2020
Douglas Laboratories Vitamin D (5,000 I.U.) | Vitamin D3 Supplement to Support Immune Health, Calcium Levels, and Bones* | 100 Tablets
  • Vitamin D Source: Also known as the "sunshine vitamin", vitamin D has many roles in the body, including proper modulation of cell growth, neuromuscular and immune function health, ensuring normal calcium absorption and maintenance of healthy plasma calcium levels.
  • Healthy Bones & Teeth: Great for healthy bones and teeth. Vitamin D3 is a great supplement for general health support
  • Vitamins/Minerals/Amino Acids: Our vitamins/minerals and amino acid formulas are developed to provide beneficial support in filling nutrient gaps
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future
#4 Real Supplements Rated Best in 2020
Douglas Laboratories Vitamin C | Water-Soluble Antioxidant Supplement to Support Immune Function and Normal Wound Healing* | 100 Tablets
169 Reviews
Douglas Laboratories Vitamin C | Water-Soluble Antioxidant Supplement to Support Immune Function and Normal Wound Healing* | 100 Tablets
  • Antioxidant Support: Vitamin C is a water-soluble antioxidant in humans and animals, supporting protection from free radical damage.*
  • Skin & Joint Health: Vitamin C is essential for the synthesis of collagen, which is the building material of all connective tissues, such as skin, blood vessels, tendons, joint cartilage, and bone.*
  • Vitamins/Minerals/Amino Acids: Dietary supplement formulated to provide beneficial support in filling nutritional gaps.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future.*
#5 Real Supplements Rated Best in 2020
Douglas Laboratories K2-D3 with Astaxanthin | Antioxidant Support for Bones, Immune Function, and Vascular Health* | 30 Capsules
84 Reviews
Douglas Laboratories K2-D3 with Astaxanthin | Antioxidant Support for Bones, Immune Function, and Vascular Health* | 30 Capsules
  • Vascular Health: Vitamins D and K combined with Astaxanthin play important roles in maintaining healthy calcium balance in the vascular system.*
  • Blood And Skeletal Health: Vitamins K and D help support the health of the blood vessels and skeletal system.*
  • Vitamins/Minerals/Amino Acids: Dietary supplement formulated to provide beneficial support in filling important nutrient gaps.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future.*
#6 Real Supplements Rated Best in 2020
Douglas Laboratories Hair Growth+ | Promotes Thickness and Reduces Loss | 60 Vegetarian Capsules
12 Reviews
Douglas Laboratories Hair Growth+ | Promotes Thickness and Reduces Loss | 60 Vegetarian Capsules
  • Hair Growth: Combination of grape seed and green tea polyphenols, zinc, and taurine to support the natural hair growth cycle and provide support for hair follicles.*
  • Unique Formula: A unique ingredient to the formula is AnaGain Nu, a pea shoot extract clinically shown in men and women to promote healthy hair growth and reduce loss.*
  • Beauty By DL: Outward appearance including hair, skin and nails, is a reflection of our internal health. Supplementation with clinically studied nutrients can help support beauty from within.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future.*
#7 Real Supplements Rated Best in 2020
Douglas Laboratories Vitamin K2 | Menaquinone-7 Supplement to Support Bone Formation, Mineralization, and Blood Vessels* | 60 Capsules
49 Reviews
Douglas Laboratories Vitamin K2 | Menaquinone-7 Supplement to Support Bone Formation, Mineralization, and Blood Vessels* | 60 Capsules
  • Bone & Cardiovascular Health: Vitamin K2 (as MK-7) supports bone and heart health, and is more bioactive than vitamin K1 and other menaquinones.*
  • Calcium Support: Vitamin K supports the body's ability to properly distribute and utilize calcium.*
  • Vitamins/Minerals/Amino Acids: Our vitamins/minerals and amino acid formulas are developed to provide beneficial support in filling nutrient gaps.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future.*
#8 Real Supplements Rated Best in 2020
Douglas Laboratories Magnesium Citrate | Supports Normal Heart Function, Bone Formation, and Resorption, Muscles, and Membrane Transport* | 90 Capsules
174 Reviews
Douglas Laboratories Magnesium Citrate | Supports Normal Heart Function, Bone Formation, and Resorption, Muscles, and Membrane Transport* | 90 Capsules
  • Physiological Health: Magnesium supports fundamentally important physiological functions in the body
  • Magnesium Utilization: More than 300 enzymes require magnesium as a cofactor and it supports all biosynthetic processes
  • Vitamins/Minerals/Amino Acids: Dietary supplement formulated to provide beneficial support in filling nutritional gaps
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future
#9 Real Supplements Rated Best in 2020
Douglas Laboratories Stress-B-Plus | Comprehensive B Vitamin Complex | 90 Tablets
145 Reviews
Douglas Laboratories Stress-B-Plus | Comprehensive B Vitamin Complex | 90 Tablets
  • Metabolism Support: B vitamins are essential components in most major metabolic reactions.*
  • Nervous System Support: B vitamins are also important for blood cells, hormones, and nervous system function.*
  • Vitamins/Minerals/Amino Acids: Our vitamins/minerals and amino acid formulas are developed to provide beneficial support in filling nutrient gaps.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future.*
#10 Real Supplements Rated Best in 2020
Douglas Laboratories | Multi-Probiotic 4 Billion | Support for Gastrointestinal and Immune Health* | 100 Capsules
124 Reviews
Douglas Laboratories | Multi-Probiotic 4 Billion | Support for Gastrointestinal and Immune Health* | 100 Capsules
  • Probiotic Blend: Immune support and gastrointestinal support;* support intestinal microflora.*
  • Lactobacillus & Bifidobacterium: 4 billion CFUs; target release in intestinal tract.*
  • Digestive: Dietary supplement formulated to support G.I. health and its highly complex ecosystem.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future.*
#11 Real Supplements Rated Best in 2020
Douglas Laboratories Brain Memory | Memory Supplement to Support Mental Focus, Brain, and Cognitive Health* | 60 Capsules
52 Reviews
Douglas Laboratories Brain Memory | Memory Supplement to Support Mental Focus, Brain, and Cognitive Health* | 60 Capsules
  • Cognitive Function: Huperzine A may help maintain cognitive function by supporting the brain's functional levels of the neurotransmitter acetylcholine.*
  • Healthy Blood Flow: Ginkgo biloba may facilitate the flow of blood and oxygen through capillaries to support brain health.*
  • Mind & Memory: Our formulas are developed to provide nutritional support during many normal, age-related changes observed in the brain.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future.*
#12 Real Supplements Rated Best in 2020
Douglas Laboratories TestoGain Hormone Specific Formulation - 120 Vegetarian Capsules
38 Reviews
Douglas Laboratories TestoGain Hormone Specific Formulation - 120 Vegetarian Capsules
  • TestoGain, provided by Douglas Laboratories, is a Hormone Specific Formulation of phytoandrogens, androgenogenic adaptogens, androgen agonists and androgen mimetics to help promote optimal testosterone function by maintaining the health of testosterone producing glands and by supporting the healthy function of testosterone responsive tissues in both men and women
  • Douglas Laboratories
#13 Real Supplements Rated Best in 2020
Douglas Laboratories Zinc Picolinate (Capsules) | 50 mg Zinc to Support Immune Function* | 100 Capsules
651 Reviews
Douglas Laboratories Zinc Picolinate (Capsules) | 50 mg Zinc to Support Immune Function* | 100 Capsules
  • Immune & Reproductive Health: Zinc has important functions in supporting immune function, reproductive health, and skin.*
  • Antioxidant Support: Zinc supplementation has been shown to facilitate the antioxidant activity of SOD and provide proper free radical protection.*
  • Vitamins/Minerals/Amino Acids: Dietary supplement formulated to provide beneficial support in filling important nutrient gaps.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future.*
#14 Real Supplements Rated Best in 2020
Douglas Laboratories - Methyl B12 Plus - Supports Blood Cell Production, Nervous System, and Metabolism - 90 Lozenges
368 Reviews
Douglas Laboratories - Methyl B12 Plus - Supports Blood Cell Production, Nervous System, and Metabolism - 90 Lozenges
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future.*
#15 Real Supplements Rated Best in 2020
Douglas Laboratories DHEA 50 mg | Micronized Supplement to Support Immune Health, Brain, Bones, Metabolism and Lean Body Mass* | 100 Capsules
345 Reviews
Douglas Laboratories DHEA 50 mg | Micronized Supplement to Support Immune Health, Brain, Bones, Metabolism and Lean Body Mass* | 100 Capsules
  • Optimal Body Function: Recent experimental and human studies show that DHEA is involved in a large variety of physiological processes, including immune function, brain function, bone metabolism, blood lipid metabolism, energy metabolism.*
  • Fast Absorption: DHEA is the parent precursor for important hormones. Its micronized formula is used for faster absorption and or sublingual administration.
  • Hormone: Our hormone formulas are developed to support healthy and appropriately balanced hormones to aid in healthy and active lifestyles.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future.*
#16 Real Supplements Rated Best in 2020
Douglas Laboratories AdrenoMend | Ten Herbal Adaptogens to Support Well-Being and Adrenal Gland Function During Stress* | 120 Capsules
174 Reviews
Douglas Laboratories AdrenoMend | Ten Herbal Adaptogens to Support Well-Being and Adrenal Gland Function During Stress* | 120 Capsules
  • Stress Support: The plant adaptogens in AdrenoMend effectively support occasional stress, support the body's natural ability to adapt to stressors, and support a healthy response to damaging consequences from those stressors. *
  • Overall Balance: Supports regulatory systems and the body's natural ability to respond to stress while providing an overall feeling of balance and normalization. *
  • Hormone: Our hormone formulas are developed to support healthy and appropriately balanced hormones to aid in healthy and active lifestyles. *
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO - free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future. *
#17 Real Supplements Rated Best in 2020
Douglas Laboratories Natural Vitamin E Complex | Mixed tocopherols for Superior Antioxidant Protection | 100 Capsules
34 Reviews
Douglas Laboratories Natural Vitamin E Complex | Mixed tocopherols for Superior Antioxidant Protection | 100 Capsules
  • Cellular Support: Protects cell membranes, especially red blood cells and tissues sensitive to normal oxidation, such as the lungs, eyes, and arteries.*
  • Essential Vitamin: Vitamin E also supports healthy immune function.*
  • Vitamins/Minerals/Amino Acids: Our vitamins/minerals and amino acid formulas are developed to provide beneficial support in filling nutrient gaps.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future.*
#18 Real Supplements Rated Best in 2020
Douglas Laboratories Ubiquinol-QH | CoEnzyme Q10 to Support Healthy Aging and Cardiovascular Function | 60 Softgels
17 Reviews
Douglas Laboratories Ubiquinol-QH | CoEnzyme Q10 to Support Healthy Aging and Cardiovascular Function | 60 Softgels
  • Healthy Aging: Ubiquinol may be of special importance for older adults looking to support healthy aging and cardiovascular function.*
  • Reduced Form Of Ubiquinone: Ubiquinol is the biologically reduced form of ubiquinone, also known as coenzyme Q10. Ubiquinone can be converted by the body into ubiquinol. While supplemental ubiquinone plays a valuable role in health and can be utilized by the body, recent studies indicate that as people age, the body's ability to convert ubiquinone to ubiquinol begins to decline.*
  • Heart & Metabolic: Our heart & metabolic formulas are developed to play an intimate role in supporting optimal cardiovascular health.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future.*
#19 Real Supplements Rated Best in 2020
Douglas Laboratories Magnesium Oxide | Supports Normal Heart Function and Bone Formation* | 100 Capsules
479 Reviews
Douglas Laboratories Magnesium Oxide | Supports Normal Heart Function and Bone Formation* | 100 Capsules
  • Heart & Bone Health: Magnesium, one of the most important minerals, plays an essential role in supporting normal heart function, muscle, and bone strength.*
  • Heart Health: Supports already normal heart function.*
  • Vitamins/Minerals/Amino Acids: Dietary supplement formulated to provide beneficial support in filling important nutrient gaps.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future.*
#20 Real Supplements Rated Best in 2020
Douglas Laboratories DHEA 25 mg | Micronized Supplement to Support Immune Health, Brain, Bones, Metabolism and Lean Body Mass* | 100 Capsules
286 Reviews
Douglas Laboratories DHEA 25 mg | Micronized Supplement to Support Immune Health, Brain, Bones, Metabolism and Lean Body Mass* | 100 Capsules
  • Optimal Body Function: Recent experimental and human studies show that DHEA is involved in a large variety of physiological processes, including immune function, brain function, bone metabolism, blood lipid metabolism, energy metabolism.*
  • Fast Absorption: DHEA is the parent precursor for important hormones. Its micronized formula is used for faster absorption and or sublingual administration.
  • Hormone: Our hormone formulas are developed to support healthy and appropriately balanced hormones to aid in healthy and active lifestyles.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future.*

Sam Lioon, company founder, was a nutritional pioneer. He saw an opportunity to help Americans improve their health, and began selling nutritional supplements directly to healthcare professionals. From that humble beginning, Douglas Laboratories has grown into a globally recognized leader in the development and manufacturing of innovative, science-based nutritional supplements, designed to help healthcare practitioners who are focused on the healthy aging and active lifestyles of their clients.

Benefits of Douglas Labs

State-of-the-art manufacturing facilities that surpass GMP standards and manufacturing regulations. Douglas Laboratories is a globally recognized leader in the development and manufacturing of innovative, science-based nutritional supplements, designed to help healthcare practitioners who are focused on the healthy aging and active lifestyles of their clients.

HIGHLIGHTS:

  • cGMPs for nutritional supplements in accordance with 21 CFR Part 111
  • NSF International has registered Douglas Laboratories as a GMP manufacturing facility
  • ISO 9001:2008 certification and ISO/IEC 17025:2005 accreditation of in-house laboratories
  • VCP (Vendor Certification Program) to ensure raw material quality
  • Approved facility to produce Certified Organic products
  • Approved facility to produce NSF Certified for Sport® products
  • Member of Council For Responsible Nutrition

Real Supplements gives you the best Douglas Laboratories supplements on the market today. Our top-rated lists are fresh and current so you get the best options.

Real Supps Team

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