Brand - Doctor's Best

Physician-founded in 1990, Doctor’s Best is a science-based nutritional supplement company, offering more than 200 products, made primarily with branded ingredients that are thoroughly researched, manufactured to the highest quality standards, and rigorously tested every step of the way—from raw materials to finished product.

We use only cGMP-certified manufacturing facilities. Doctor’s Best is committed to transparency through education and communication and strives to be crystal clear in what we offer, why and how we offer it.

Doctor's Best 5-HTP Enhanced with Vitamins B6 and C 120 Capsules

Our Price: $45.40

Doctor's Best 5-HTP Enhanced with Vitamins B6 and C 120 Capsules   About Supplements.co.nz Doctor's Best 5-HTP Enhanced with Vitamins B6 and C 5-HTP (5-hydroxy L-tryptophan) is a naturally occurring metabolite of the amino acid tryptophan. 5-HTP is converted in the brain to serotonin, a neurotransmitter substance found at the junctions (synapses) between neurons. 5-HTP helps maintain mental and emotional...

Doctor's Best Acetyl-L-Carnitine 500mg 60 Veggie Caps

Our Price: $32.90

Doctor's Best Acetyl-L-Carnitine 500mg 60 Veggie Caps   About Supplement.co.nz Doctor's Best Acetyl-L-Carnitine 500mg Supports cognitive function, improved memory and mental alertness Support for energy metabolism in the brain Supports healthy membrane structure in brain cells   A powerful brain stimulant and a great support for alleviating nervous system problems, Acetyl-L-Carnitine can play a vital role in improving mental focus...

Doctor's Best Alpha-Lipoic Acid 600mg 60 Vegecaps

Our Price: $31.80

Doctor's Best Alpha-Lipoic Acid 600mg 60 Vegecaps   About Supplements.co.nz Doctor's Best Alpha-Lipoic Acid 600mg Universal Antioxidant  Alpha-lipoic acid is a sulfur-containing fatty acid that performs vitamin-like roles in thebody. It functions as a co-enzyme in the metabolism of carbohydrates and is required forsynthesis of acetyl CoA, a key metabolite in the cellular process that turns glucose (bloodsugar) into energy. Because...

Doctor's Best Artery Prime with MenaQ7 60 Veggie Capsules

Our Price: $54.40

Doctor's Best Artery Prime with MenaQ7 60 Veggie Capsules   About Supplements.co.nz Doctor's Best Artery Prime with MenaQ7 Artery Prime with MenaQ7® contains pure MenaQ7®, the superior form of Vitamin K for optimum bioavailability and delivery to the body. MenaQ7® crystals are derived from soy-free fermentation of chickpeas.  Vitamin K is a family of fat-soluble vitamins with similar structures, but different...

Doctor's Best Astaxanthin 12mg 60 Softgels

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Doctor's Best Astaxanthin 12mg 60 Softgels   About Supplements.co.nz Doctor's Best Astaxanthin 12mg Supports healthy blood flow and vessel integrity   Promotes healthy, integrated immune response  Helps to protect from ultraviolet radiation   Astaxanthin is a keto-carotenoid that belongs to a larger class of chemical compounds known as Terpenes—these biological compounds have a unique composition consisting of five carbon precursors. Astaxanthin is...

Doctor's Best Astaxanthin 6mg 30 Softgels

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Doctor's Best Astaxanthin 6mg 30 Softgels   About Supplements.co.nz Doctor's Best Astaxanthin 6mg Supports healthy blood flow and vessel integrity    Promotes healthy, integrated immune response  Helps to protect from ultraviolet radiation   Astaxanthin is among the most potent sources of antioxidants. Extracted from naturally occurring red component in some water plants, Astaxanthin is essentially a carotenoid extract. The high concentration...

Doctor's Best Astaxanthin 6mg 90 Softgels

Our Price: $66.30

Doctor's Best Astaxanthin 6mg 90 Softgels About Supplements.co.nz Doctor's Best Astaxanthin 6mg Supports healthy blood flow and vessel integrity    Promotes healthy, integrated immune response  Helps to protect from ultraviolet radiation   Astaxanthin is an ultra-potent natural antioxidant with unique effects on cell membranes that manage important life functions. This natural, red component of a fresh water-plant offers exceptionally strong antioxidant...

Doctor's Best Betaine HCL Pepsin and Gentian Bitters 120 Capsules

Our Price: $22.70

Doctor's Best Betaine HCL Pepsin and Gentian Bitters 120 Capsules   About Supplements.co.nz Doctor's Best Betaine HCL Pepsin and Gentian Bitters Betaine HCL/Pepsin/Gentian Bitters contains three nutritional factors that perform complementary functions designed to support the efficiency of the digestive process. Supplementing with Betaine HCL may support the stomach's digestive capacity. Pepsin is an enzyme produced by the body to...

Doctor's Best Biotin 5000mcg 120 Vegecaps

Our Price: $23.40

Doctor's Best Biotin 5000mcg 120 Vegecaps   About Supplements.co.nz Doctor's Best Biotin 5000mcg Doctor’s Best Biotin is a highly potent source of biotin, a water soluble B-Vitamin that promotes healthy hair, skin and nails. Clinical observations of biotin deficiency show its importance for the upkeep of healthy skin and hair, as well as for the immune and central nervous systems. Biotin...

Doctor's Best Brain Magnesium 75mg 60 Veggie Caps

Our Price: $54.90

Doctor's Best Brain Magnesium 75mg 60 Veggie Caps   About Supplements.co.nz Doctor's Best Brain Magnesium 75mg Unique delivery of magnesium into the brain   Vital for memory, learning, concentration  Supports mood and other aspects of cognitive health   Brain Magnesium is a rich source of magnesium l-threonate (Magtein) that delivers one of the most critical trace minerals for better neurological activity—Magnesium. It...

Doctor's Best Carnosine 500mg 90 Veggie Caps

Our Price: $60.80

Doctor's Best Carnosine 500mg 90 Veggie Caps   About Supplements.co.nz Doctor's Best Carnosine 500mg Unique brain protection   Fundamental support for healthy brain function  Protects cells and enzymes against damage   Carnosine is a dipeptide (two amino acids bonded together) of the amino acids beta-alanine and histidine and is highly concentrated in muscle and brain tissues. This versatile nutrient is capable of...

Doctor's Best Cinnamon Extract CinnulinPF 125mg 60 Caps

Our Price: $27.80

Doctor's Best Cinnamon Extract CinnulinPF 125mg 60 Caps   About Supplements.co.nz Doctor's Best Cinnamon Extract CinnulinPF 125mg Helps to maintain healthy blood sugar levels   Ability to stimulate healthy cellular glucose metabolism  Cinnulin PF® – patented water extract of cinnamon   Cinnamon, one of the world's favorite spices, is a medicinal herb with more than 4,000 years of traditional use. Recent...

Doctor's Best Collagen Types 1 & 3 1000mg 180 Tablets

Our Price: $30.40

Doctor's Best Collagen Types 1 & 3 1000mg 180 Tablets   About Supplements.co.nz Doctor's Best Collagen Types 1 & 3 1000mg Support for hair, skin, nails, tendons, ligaments and bones   Support for ageing  Support for joints   Collagen is the major structural protein in connective tissue and the most abundant protein in human body which provides the vital support for hair,...

Doctor's Best Comprehensive Prostate Formula 120 Veggie Caps

Our Price: $46.50

Doctor's Best Comprehensive Prostate Formula 120 Veggie Caps   About Supplements.co.nz Doctor's Best Comprehensive Prostate Formula Comprehensive support for prostate health   Supports normal urinary function and flow  Ingredients that have been extensively studied   Scientifically researched to support the health and wellness of the prostate gland, Comprehensive Prostate Formula incorporates premier herbal extracts of saw palmetto, African pygeum bark and stinging...

Doctor's Best Curcumin C3 Complex 500mg 120 Caps

Our Price: $69.90

Doctor's Best Curcumin C3 Complex 500mg 120 Caps   About Supplements.co.nz Doctor's Best Curcumin C3 Complex 500mg Potent antioxidant protection for cellular health   Protects cells and tissues by fighting free radicals   Enhances normal detoxification   Curcumin C3 Complex is a potent antioxidant for cellular health that supports healthy joint structure and function along with ensuring healthy brain ageing. Curcumin C3 Complex...

Doctor's Best Curcumin Phytosome Featuring Meriva 180 Veggie Caps

Our Price: $84.90

Doctor's Best Curcumin Phytosome Featuring Meriva 180 Veggie Caps   About Supplements.co.nz Doctor's Best Curcumin Phytosome Featuring Meriva Supports cell integrity by fighting free radicals   Promotes healthy joints and other organs  Supports healthy brain ageing and activity   Bid farewell to pain, inflammation and oxidation with Doctor's Best Curcumin Phytosome featuring Meriva 180 Veggie Caps. It has been proven by research...

Doctor's Best Curcumin Phytosome Featuring Meriva 60 Veggie Caps

Our Price: $37.80

Doctor's Best Curcumin Phytosome Featuring Meriva 60 Veggie Caps   About Supplements.co.nz Doctor's Best Curcumin Phytosome Featuring Meriva Supports cell integrity by fighting free radicals   Promotes healthy joints and other organs  Supports healthy brain ageing and activity   The curcumin nutrient complex is derived from turmeric root and is unique for its diverse benefits to human health. While, many curcumin supplements...

Doctor's Best D-Phenylalanine 500mg 60 Veggie Capsules

Our Price: $41.40

Doctor's Best D-Phenylalanine 500mg 60 Veggie Capsules   About Supplements.co.nz Doctor's Best D-Phenylalanine 500mg D-phenylalanine is a non-protein amino acid related to the essential amino acid L-phenylalanine. D and L-penylalanine are structural mirror images of each other. A small amount of D-phenylalanine may be converted to L-phenylalanine in the body. D-phenylalanine is reported to inhibit and enzyme that degrades enkephalins,...

Doctor's Best D-Ribose Featuring BioEnergy Ribose 250g

Our Price: $58.90

Doctor's Best D-Ribose Featuring BioEnergy Ribose 250g   About Supplements.co.nz Doctor's Best D-Ribose Featuring BioEnergy Ribose Supports energy levels in heart and muscle tissue   Decreases free radical formation during exercise Highly beneficial for athletes and seniors   Ribose is the building block of ATP, the substance found in every cell of our body that gives us energy. Ribose is a 5-carbon...

Doctor's Best D-Ribose Featuring BioEnergy Ribose 850mg 120 Veggie Caps

Our Price: $45.90

Doctor's Best D-Ribose Featuring BioEnergy Ribose 850mg 120 Veggie Caps   About Supplements.co.nz Doctor's Best D-Ribose Featuring BioEnergy Ribose 850mg Supports energy levels in heart and muscle tissue   Decreases free radical formation during exercise Highly beneficial for athletes and seniors   D-Ribose featuring BioEnergy Ribose 850mg 120 Veggie Caps give the heart and muscles the requisite amount of energy. Ribose, the...

Doctor's Best DHA 500 from Calamari 180 Softgels

Our Price: $77.80

Doctor's Best DHA 500 from Calamari 180 Softgels   About Supplements.co.nz Doctor's Best DHA 500 from Calamari Support for brain health Support for heart and circulation  Essential for early brain and eye development   DHA 500 from Calamari works as a building block for cell membranes and promotes good brain health. With the highly concentrated omega-3 DHA, it supports memory and...

Doctor's Best DHA 500 from Calamari 60 Softgels

Our Price: $29.90

Doctor's Best DHA 500 from Calamari 60 Softgels   About Supplements.co.nz Doctor's Best DHA 500 from Calamari Support for brain health Support for heart and circulation  Essential for early brain and eye development   DHA 500 from Calamari is excellent for brain health as brain is highly enriched in DHA. Offered to support immunity and improved heart health, these capsules are...

Doctor's Best EpiCor 500mg 60 Veggie Caps

Our Price: $46.40

Doctor's Best EpiCor 500mg 60 Veggie Caps   About Supplements.co.nz Doctor's Best EpiCor 500mg A unique immune balancer   High metabolite immunogen: Unique Nutrient Profile  Helps increase IgA level   The EpiCor 500 mg is chemically dried yeast that works brilliantly in supporting cellular health in order to improve body immunity. It is a highly metabolite immunogen that is effective in...

Doctor's Best Fast Acting Arginine Complex with Nitrosigine 60 Tablets

Our Price: $54.40

Doctor's Best Fast Acting Arginine Complex with Nitrosigine 60 Tablets   About Supplements.co.nz Doctor's Best Fast Acting Arginine Complex with Nitrosigine Nitrosigine is a patented ingredient of arginine silicate. It has been clinically shown tosignificantly boost nitric oxide (NO) levels, a key factor in increasing blood flow to workingmuscles. Nitrosigine is engineeered to take effect in as quickly as 30...

Doctor's Best Free Lutein Featuring FloraGLO 60 Softgels

Our Price: $31.50

Doctor's Best Free Lutein Featuring FloraGLO 60 Softgels About Supplements.co.nz Doctor's Best Free Lutein Featuring FloraGLO Maintains healthy visual function   Potent free radical scavenger  Supports skin health    The Free Lutein featuring FloraGLO 60 Soft Gel contains high quality FloraGLO Lutein in it. The FloraGLO Lutein is bioavailable, natural source of lutein extracted from marigold flowers, the most abundant source in...

Doctor's Best Fully Active B Complex 75mg 30 Veggie Caps

Our Price: $23.20

Doctor's Best Fully Active B Complex 75mg 30 Veggie Caps About Supplements.co.nz Doctor's Best Fully Active B Complex 75mg Supports energy production from foods   Helps maintain brain health and well-being  Supplies the best utilized B vitamin forms   Fully Active B Complex 75mg 30 Veggie Caps provide generous amounts of the most active B vitamin forms or ‘vitamers’ that support energy...

Doctor's Best Ginkgo Extra Strength 120mg 120 Veggie Caps

Our Price: $23.40

Doctor's Best Ginkgo Extra Strength 120mg 120 Veggie Caps About Supplements.co.nz Doctor's Best Ginkgo Extra Strength 120mg Promotes mental function and memory   Supports circulation in the brain  Supports healthy vision   Native to China, the ginkgo tree is a model of longevity that can thrive up to 1,000 years and has been traditionally used for improving health since ages. Gingko is...

Doctor's Best High Absorption Magnesium 100mg 120 Tablets

Our Price: $25.80

Doctor's Best High Absorption Magnesium 100mg 120 Tablets About Supplements.co.nz Doctor's Best High Absorption Magnesium 100mg -Acts as a co-factor for metabolic enzymes  -Assists energy production in cells -Supports nerve and muscle function  Magnesium is recognized as an essential dietary mineral that supports optimum nerve function, relaxes muscles, and helps to maintain a healthy heartbeat. Magnesium assists the cells in producing metabolic energy....

Doctor's Best High Absorption Magnesium 100mg 240 Tablets

Our Price: $41.70

Doctor's Best High Absorption Magnesium 100mg 240 Tablets About Supplements.co.nz Doctor's Best High Absorption Magnesium 100mg Acts as a co-factor for metabolic enzymes   Assists energy production in cells  Supports nerve and muscle function    Magnesium is crucial for keeping the heart healthy and Doctor’s Best High Absorption Magnesium 100 mg Elemental 240 Tablets have proven to be an optimum source of...

Doctor's Best High Absorption Magnesium Powder 200mg

Our Price: $41.40

Doctor's Best High Absorption Magnesium Powder 200mg About Supplements.co.nz Doctor's Best High Absorption Magnesium Powder 200mg Magnesium is an essential dietary mineral that is required for optimal function of the cardiovascular system, nervous system, skeletal muscle, digestive tract, and uterus. Seventy-five percent of Americans are deficient in magnesium. Inadequate magnesium affects the heart, blood vessels, bones and blood sugar balance. Magnesium...

Doctor's Best High Potency Serrapeptase 120,000 Units 90 Veggie Caps

Our Price: $60.80

Doctor's Best High Potency Serrapeptase 120,000 Units 90 Veggie Caps About Supplements.co.nz Doctor's Best High Potency Serrapeptase 120,000 Units Supports healthy sinus and airways function   Supports healthy immune response  May assist with injuries such as sprains and torn ligaments   Serrapeptase is recognized by many as a response to clogged arteries and chronic inflammation. This proteolytic enzyme has been used as...

Doctor's Best Hyaluronic Acid with Chondroitin Sulfate 100mg 180 Caps

Our Price: $75.80

Doctor's Best Hyaluronic Acid with Chondroitin Sulfate 100mg 180 Caps About Supplements.co.nz Doctor's Best Hyaluronic Acid with Chondroitin Sulfate 100mg Supports healthy joint function   Boost skin elasticity  Made with BioCell Collagen II   The importance of hyaluronic acid: HA is a molecule that can absorb up to 3,000 times its weight in water, therefore is an important hydrating agent for tissues....

Doctor's Best Hyaluronic Acid with Chondroitin Sulfate 100mg 60 Caps

Our Price: $33.90

Doctor's Best Hyaluronic Acid with Chondroitin Sulfate 100mg 60 Caps About Supplements.co.nz Doctor's Best Hyaluronic Acid with Chondroitin Sulfate 100mg Supports healthy joint function   Boost skin elasticity  Made with BioCell Collagen II   The importance of hyaluronic acid: HA is a molecule that can absorb up to 3,000 times its weight in water, therefore is an important hydrating agent for tissues....

Doctor's Best L-Arginine Powder 300mg

Our Price: $40.40

Doctor's Best L-Arginine Powder 300mg About Supplements.co.nz Doctor's Best L-Arginine Powder 300mg Doctor's Best L-Arginine Powder helps support athletic endurance and helps boost nitric oxide production. L-Arginine also helps regulate blood pressure, helps improve cardiovascular health, helps support a healthy immune system, helps improve blood sugar regulation and helps support brain health. Nitric oxide is a powerful neurotransmitter that helps...

Doctor's Best L-Carnitine Fumarate 855mg 60 Veggie Capsules

Our Price: $34.80

Doctor's Best L-Carnitine Fumarate 855mg 60 Veggie Capsules About Supplements.co.nz Doctor's Best L-Carnitine Fumarate 855mg L-Carnitine is a nutrient that promotes energy production in cells by transporting fatty acids into the mitochondrion‚ an intracellular structure that generates metabolic energy in the form of ATP. In this role‚ L-carnitine helps the body efficiently metabolize fat. Fumarate is a naturally occurring compound...

Doctor's Best L-Tyrosine 120 Veggie Capsules

Our Price: $25.70

Doctor's Best L-Tyrosine 120 Veggie Capsules About Supplements.co.nz Doctor's Best L-Tyrosine Tyrosine is a conditionally essential amino acid that is a precursor to the catecholamine transmitters dopamine, epinephrine, and norepinephrine. These are vital messengers for the brain and the body’s other nerve networks. The thyroid gland also needs tyrosine to make the vital hormone thyroxine.   Benifits: L-Tyrosine, one of...

Doctor's Best Lutein Featuring Lutemax 20mg 180 Softgels

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Doctor's Best Lutein Featuring Lutemax 20mg 180 Softgels About Supplements.co.nz Doctor's Best Lutein Featuring Lutemax 20mg Enhances visual function   Promotes macular health  Supports eyes during ageing   Lutein Featuring Lutemax is sustainably extracted from marigold flowers and has proved to be crucial in maintaining optimum eye health. As a dietary supplement, it assists people struggling to maintain adequate intake of these...

Doctor's Best Lutein Featuring Lutemax 20mg 60 Softgels

Our Price: $29.20

Doctor's Best Lutein Featuring Lutemax 20mg 60 Softgels About Supplements.co.nz Doctor's Best Lutein Featuring Lutemax 20mg Enhances visual function   Promotes macular health  Supports eyes during ageing   A major carotenoid found in human blood, Lutein has a high tissue concentration in the retina of human eye. Lutein along with Zeaxanthin is responsible for promoting and maintaining eye health. These carotenoids naturally...

Doctor's Best MenoStrong with geniVida 30mg 60 Vegecaps

Our Price: $37.95

Doctor's Best MenoStrong with geniVida 30mg 60 Vegecaps About Supplements.co.nz Doctor's Best MenoStrong with geniVida 30mg MenoStrong with geniVida is a soy-free, pure genistein formulated from a special patented process to help minimize the severity of common menopausal complaints, such as hot flashes and night sweats. It is a hormone-free, clinically proven product that works safely to minimize night sweats and...

Doctor's Best NAC Detox Regulators 60 Vegecaps

Our Price: $19.40

Doctor's Best NAC Detox Regulators 60 Vegecaps About Supplements.co.nz Doctor's Best NAC Detox Regulators 60 Vegecaps What is NAC Detox Regulators?Doctor’s Best NAC Detox Regulators boosts glutathione production in the brain, liver and other organs, supports enzymes that neutralize natural and manmade toxins, and promotes the healthy functioning of numerous important proteins. The three nutrients in this product - NAC (N-Acetyl Cysteine) and...

Doctor's Best Nattokinase 2,000 FU 90 Veggie Caps

Our Price: $33.90

Doctor's Best Nattokinase 2,000 FU 90 Veggie Caps About Supplements.co.nz Doctor's Best Nattokinase 2,000 FU Supports circulatory health   Helps increase nutrient supply  Helps improve oxygen flow to the body’s tissues   Traditionally used as a folk remedy in Japan, Nattokinase is now being recognized by modern medical science as well for its numerous health benefits. This enzyme is derived from ‘natto...

Doctor's Best Phosphatidyl Serine 100mg 60 Softgels

Our Price: $48.90

Doctor's Best Phosphatidyl Serine 100mg 60 Softgels About Supplements.co.nz Doctor's Best Phosphatidyl Serine 100mg Supports healthy memory and thinking ability   Supports mood and stress  Support healthy brain activity    Phosphatidyl Serine is essentially known for enhancing cell-to-cell communication and supporting healthy cognitive function. Phosphatidyl Serine (PS) is derived from soybean lecithin and can be regarded as structural components of brain neurons....

Doctor's Best Quercetin Bromelain 180 Veggie Caps

Our Price: $49.40

Doctor's Best Quercetin Bromelain 180 Veggie Caps About Supplements.co.nz Doctor's Best Quercetin Bromelain Supports healthy immune system   Supports healthy cardiovascular system  Supports healthy respiratory function   Quercetin/Bromelain is recognized for its ability to boost the immune system. Bromelain, an enzyme derived from pineapple supplies the flavonoid quercetin, which is extracted from seed pods of the Dimorphandra mollis plant. By inhibiting the...

Doctor's Best Quick Melt Fully Active B12 1000mcg 60 Tablets

Our Price: $19.40

Doctor's Best Quick Melt Fully Active B12 1000mcg 60 Tablets About Supplements.co.nz Doctor's Best Quick Melt Fully Active B12 1000mcg Quick Melt Fully Active B12 is a fast acting and pleasant tasting vitamin B12, provided as Methylcobalamin, its most biochemically active form. Vitamin B12 is essential for healthy mood and memory management and for fundamental life processes such as healthy gene...

Doctor's Best R-Lipoic Acid Featuring BioEnhanced Na-RALA 100mg 60 Veggie Caps.

Our Price: $35.50

Doctor's Best R-Lipoic Acid Featuring BioEnhanced Na-RALA 100mg 60 Veggie Caps About Supplements.co.nz Doctor's Best R-Lipoic Acid Featuring Bio Enhanced Na-RALA 100mg The universal antioxidant   Supports cognitive function and brain health  Supports cardiovascular health    Lipoic Acid occurs naturally in animals and is essential for aerobic metabolism. However, over the years it is being increasingly used as a dietary supplement in...

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