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 Capsules
  • Also Contains Prebiotics: also included in the synbiotic blend, is NutraFlora scFOS prebiotic fiber that is well tolerated and works synergistically with probiotics to flourish in the intestinal tract.*
  • Digestive & Immune Health: Helps to support digestive health, nutrient absorption, and immune health by balancing intestinal microflora.*
  • Digestive: Dietary supplement formulated to support G.I. health and its highly complex ecosystem.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#2 Real Supplements Rated Best in 2020
Douglas Laboratories - Ultra Preventive X Capsules - Signature Multivitamin and Mineral Supplement with Fruits and Vegetables for Daily Wellness - 240 Capsules
  • Essential Vitamins And Minerals: Ultra Preventive X has been carefully developed to contain the right proportions of vitamins, minerals, trace elements, and other nutrients.
  • Antioxidant Support: Certain nutrients, such as beta-carotene, vitamin C, vitamin E, and B-complex vitamins are included in high-potency amounts because of the vital roles they play in antioxidant protection of healthy cells, proper energy production, the maintenance of healthy blood cells.*
  • Foundation: Dietary supplement formulated to support the unique biochemical and metabolic needs of each individual.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#3 Real Supplements Rated Best in 2020
Douglas Laboratories - B-Complex w/ Metafolin - Supports Blood Cells, Hormones, and Nervous System - 60 Capsules
  • Vitamin B Source: Vitamin B complex is an essential complex in most major metabolic reactions. Includes Metafolin, methylcobalamin, other B vitamins and coenzymes essential for energy production and immune support. Also includes thiamin, riboflavin, niacin, biotin, pantothenic acid and other coenzymes.*
  • Healthy Blood Cells And Nervous System: Vital for maintaining healthy blood cells, hormones, and nervous system function. B complex with Metafolin and intrinsic factor provides adequate supply of B vitamins on a daily basis.*
  • Vitamins/Minerals/Amino Acids: Dietary supplement formulated to provide valuable support in filling important nutrient gaps in adults.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#4 Real Supplements Rated Best in 2020
Douglas Laboratories - Cal-6 + Mg. - Six-Source Calcium Complex with Magnesium to Support Healthy Bones and Teeth - 250 Tablets
  • Calcium Source: Provides a good source of dietary calcium together with other nutrients that assist in the maintenance of healthy bone structure and function.*
  • Vitamin D & Bone Health: Vitamin D is a key regulatory hormone that supports healthy calcium and bone metabolism.*
  • Bone & Joint: Dietary supplement to help maintain healthy mobility into the later years of adulthood.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#5 Real Supplements Rated Best in 2020
Douglas Laboratories - DIM Enhanced - with Curcumin, Green Tea, and Wasabia to Support Healthy Estrogen Hormone Balance and Immune Health - 60 Capsules
  • Hormone Balance And Immune Health: DIM Enhanced is a microencapsulated form of diindolylmethane, with curcumin, green tea, and wasabia designed to support healthy estrogen hormone balance and immune health.*
  • Detoxification Support: Studies have shown that curcumin, a naturally occurring biologically active group of compounds from Curcuma longa (turmeric), provides antioxidant support, playing an important role in maintaining the body's natural detoxification processes.*
  • Hormone: Dietary supplement formulated to support healthy and appropriately balanced hormones to aid in healthy aging and active lifestyles.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#6 Real Supplements Rated Best in 2020
Douglas Laboratories - Berberine Balance - Cardiovascular Support - 60 Capsules
49 Reviews
Douglas Laboratories - Berberine Balance - Cardiovascular Support - 60 Capsules
  • Cardiometabolic Health: Recent studies indicate that berberine, a naturally occurring alkaloid found in a number of plants, is an effective supplement for helping to maintain cardiometabolic health.*
  • Cardiovascular Health: Also contains grape seed extract, a well known antioxidant with heart health benefits. Additionally, alpha lipoic acid is included to support proper insulin function.*
  • Heart & Metabolic: Dietary supplement formulated to play an intimate role in supporting optimal cardiovascular health with age.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#7 Real Supplements Rated Best in 2020
Douglas Laboratories - Ultra Preventive X - Multivitamin Mineral Formula with Fruits and Vegetables for Daily Wellness - 240 Tablets
  • Improved Formula: Contains new and improved ingredients, including vitamin K2 for bone and vascular health, bioflavonoids from quercetin, and alpha lipoic acid for healthy blood sugar metabolism.*
  • Bioavailability: In addition, Ultra Preventive X now contains an organic phytonutrient blend with polyphenols, increased choline content for methylation and liver support, increased lutein and zeaxanthin for vision health, three types of vitamin B12, and improved mineral forms for bioavailability.*
  • Cellular Health Support: Organic fruits and vegetables provide naturally occurring nutrients and antioxidants to help fight free radical damage and support cellular health.*
  • Foundation: Dietary supplement formulated to support the unique biochemical and metabolic needs of each individual.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#8 Real Supplements Rated Best in 2020
Douglas Laboratories - Methyl B12 Plus - Supports Blood Cell Production, Nervous System, and Metabolism - 90 Lozenges
  • Energy Support: As co-enzymes, the B vitamins play an important role in proper energy production, including the metabolism of lipids, carbohydrates, and proteins.*
  • Unique B Vitamins:Methylfolate and methylcobalamin are the predominant forms of B vitamins commonly found in cells that do not require additional conversion in the body.
  • Vitamins/Minerals/Amino Acids: Dietary supplement formulated to provide valuable support in filling important nutrient gaps in adults.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#9 Real Supplements Rated Best in 2020
Douglas Laboratories - Vitamin K2, Menaquinone-7 Soy-Free - Supports Bone and Cardiovascular Health - 60 Capsules
  • Bone & Cardiovascular Health: Vitamin K2 (as MK-7) supports bone and cardiovascular 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: Dietary supplement formulated to provide valuable support in filling important nutrient gaps in adults.
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#10 Real Supplements Rated Best in 2020
Douglas Laboratories - Prenatal - Prenatal Capsules with Metafolin Methyl and - 60 Capsules
  • Essential Vitamins & Minerals: Provides daily intake of essential vitamin and mineral nutrients. Contains 20+ helpful ingredients for both mother and child.
  • Bioavailable: Includes Metafolin L-methyfolate and vitamin B12 as methylcobalamin, the bioavailable forms of vitamins that the body utilizes directly. Lutein, an important carotenoid, has also been added for its benefit to the healthy developing baby.*
  • Foundation: Dietary supplement formulated to support the unique biochemical and metabolic needs of each individual.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#11 Real Supplements Rated Best in 2020
Douglas Laboratories - Multi-Probiotic 4 Billion - Support for Gastrointestinal and Immune Health - 100 Capsules
  • Immune Health: Offers support for immune health.*
  • Gastrointestinal Health: Unique probiotic blend provides support for gastrointestinal health.*
  • Probiotic Formula: Symbiotic formula that contains 4 billion CFU from cultures of seven potent investigated strains of Lactobacillus, Bifidobacterium, Streptococcus and Lactococcus.*
  • Prebiotic Fiber: Includes FOS prebiotic fiber and elm bark in the symbiotic mixture.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#12 Real Supplements Rated Best in 2020
Douglas Laboratories - AdrenoMend - Ten Herbal Adaptogens to Support Adrenal Gland Function During Stress - 120 Capsules
55 Reviews
Douglas Laboratories - AdrenoMend - Ten Herbal Adaptogens to Support 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.*
  • Emotional Balance: Supports the body's natural ability to respond to stress, while providing an overall feeling of balance and normalization.*
  • Hormone: Dietary supplement formulated to support healthy and appropriately balanced hormones to aid in healthy aging and active lifestyles.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#13 Real Supplements Rated Best in 2020
Douglas Laboratories - Glucoset - Essential Nutrients for Healthy Glucose Metabolism - 60 Capsules
  • Metabolic Support: Glucoset capsules contain a complementary blend of thiamin, biotin, chromium, alpha-lipoic acid, N-acetyl-L-cysteine, and standardized extract of Gymnema sylvestre leaf for targeted nutritional support of already healthy glucose metabolism.*
  • Antioxidant Support: N-acetyl-L-cysteine is a potent antioxidant, serving as an intracellular precursor of glutathione.*
  • Heart & Metabolic: Dietary supplement formulated to play an intimate role in supporting optimal cardiovascular health with age.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#14 Real Supplements Rated Best in 2020
Douglas Laboratories - Liquid B12 (Formulated with Methylcobalamin) - Supports Neurological and Immune Health - 1 fl. oz.
  • Vitamin B12 Source: Bioavailable vitamin B12 is essential for normal metabolism of carbohydrates, fat and protein.*
  • Neurological Health: Vitamin B12 is also required for nucleic acid (DNA) synthesis, methionine synthesis from cysteine, and normal myelin synthesis in the nervous system.*
  • Vitamins/Minerals/Amino Acids: Dietary supplement formulated to provide valuable support in filling important nutrient gaps in adults.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#15 Real Supplements Rated Best in 2020
Douglas Laboratories - Vitamin D (5,000 I.U.) - Vitamin D3 Health Supplement - 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 perfect supplement for general health support.*
  • Vitamins/Minerals/Amino Acids: Dietary supplement formulated to provide valuable support in filling important nutrient gaps in adults.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#16 Real Supplements Rated Best in 2020
Douglas Laboratories - Vitamin C - 100 Tablets
  • Antioxidant Support: Vitamin C is among the most powerful antioxidants in humans and animals, providing protection from free radical damage to healthy eyes, lungs and blood.*
  • 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.*
  • Tissue Health: Vitamin C supports normal wound healing and capillary health.*
  • Vitamins/Minerals/Amino Acids: Dietary supplement formulated to provide valuable support in filling important nutrient gaps in adults.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#17 Real Supplements Rated Best in 2020
Douglas Laboratories - K2-D3 with Astaxanthin - Provides Bone, Neuromuscular and Immune Support - 30 Capsules
  • Vascular Health: Vitamin D and Vitamin K both play important roles in maintaining healthy calcium balance in the vascular system.*
  • Blood And Skeletal Health: Ingredients included in the product help support health of the blood vessels and skeletal system.*
  • Vitamins/Minerals/Amino Acids: Dietary supplement formulated to provide valuable support in filling important nutrient gaps in adults.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#18 Real Supplements Rated Best in 2020
Douglas Laboratories - DIM Enhanced - with Curcumin, Green Tea, and Wasabia to Support Healthy Estrogen Hormone Balance and Immune Health - 30 Capsules
  • Hormone Balance And Immune Health: DIM Enhanced is a microencapsulated form of diindolylmethane, with curcumin, green tea, and wasabia designed to support healthy estrogen hormone balance and immune health.*
  • Detoxification Support: Studies have shown that curcumin, a naturally occurring biologically active group of compounds from Curcuma longa (turmeric), provides antioxidant support, playing an important role in maintaining the body's natural detoxification processes.*
  • Hormone: Dietary supplement formulated to support healthy and appropriately balanced hormones to aid in healthy aging and active lifestyles.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#19 Real Supplements Rated Best in 2020
Douglas Laboratories - Ayur-Ashwaganda (Indian Ginseng) - Ayurvedic Herb to Support Energy Production, Mental and Physical Performance - 60 Capsules
  • Energy Support: Ashwaganda is used as a general tonic to support energy production and support mental and physical performance.*
  • Emotional Well-Being: Plant adaptogens can support a healthy response to fatigue and facilitate endurance, as well as support healthy mental and emotional well being.*
  • Foundation: Dietary supplement formulated to support the unique biochemical and metabolic needs of each individual.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
#20 Real Supplements Rated Best in 2020
Douglas Laboratories - Ultra HNS (Hair, Nails, Skin) - Keratin, Biotin and Nutrients to Support Hair, Nail, and Skin Health - 90 Capsules
20 Reviews
Douglas Laboratories - Ultra HNS (Hair, Nails, Skin) - Keratin, Biotin and Nutrients to Support Hair, Nail, and Skin Health - 90 Capsules
  • Hair, Nail, & Skin Health: Cynatine HNS has demonstrated that it can improve the strength, brightness and appearance of healthy hair, nails and skin, as well as clinical support in reducing hair loss associated with washing.*
  • Source Of Zinc: Zinc is important for healthy growth, immune system function, protein synthesis, antioxidant mechanisms, and wound healing.*
  • Beauty: Dietary supplement with specific, scientifically studied nutrients to help support appearance with age.*
  • Douglas Laboratories researches, develops and manufactures the right suite of rigorously designed, science-based, healthy aging supplements. With a 60-year heritage of innovating and designing nutritional products, we push the potential of active individuals to continually perform at their personal best. | *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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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With over 30 years experience in the health and fitness industry, we are a team of fitness bloggers and entrepreneurs, certified personal trainers and nutritionists contributing to bringing the most up-to-date content.  We send our friends and clients here for reference to new supplements and hope it serves as a reference site for you as well.

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