Doctor's Best

Proven Science

Doctor’s Best is not interested in fads, trends, or quick fixes. We’re interested in science-based nutrition. We want to know what works, how it works, and why it works, well before we decide to manufacture or sell a product. We collaborate with nutritional scientists who are developing new ingredients, and we study their clinical findings to determine the most effective way to provide the desired results. 

Quality Ingredients

Doctor’s Best seeks out superior-quality ingredients that have been cultivated, studied, and developed all over the world. To deliver results consistent with research, we strive to use trademarked, branded ingredients in our products, matched to the specific ingredient and strength studied in the clinical studies. We then not only verify the quality of the raw materials used, but we test the finished product as well —added assurance that you’ll never find substitutes in Doctor’s Best. 

Education & Transparency

Doctor’s Best is committed to earning your trust through transparency and education. Sure we list all the ingredients on every bottle, describe how the product works, and cite studies that support product claims, but we give you much more than that. We provide easy-to-understand enhanced product pages—and a selection of videos—that can answer your most pressing questions: What is it? How does it work? Why should I take it? Looking for more scientific explanations? Check out our Scientific Fact Sheets, which are loaded with detailed background information, structure-function statements and scientific references that substantiate these statements. 


Of course the integrity of the ingredients and the effectiveness of the product depend on the quality of manufacturing procedures. We choose our manufacturing facilities with care—only certified cGMP facilities pass our rigorous requirements—and we personally monitor every product throughout the production cycle to ensure it meets the highest quality standards.


Ubiquinol featuring Kaneka's QH 100mg (60 SG's)

$79.90 NZD

  Doctor’s Best Ubiquinol featuring Kaneka QH® supports healthy heart function by supporting mitochondria to enhance cellular energy production Ubiquinol, the reduced...

12 HrVitaminCwPureWayC60TP

12-Hour Vitamin C with PureWay-C 500mg (60 T's) New to NZ!

$26.85 NZD

Doctor’s Best Sustained Release Vitamin C with PureWay-C® is a unique formula that supports the body’s immune and antioxidant systems.* It contains PureWay-C®,...


Biotin 5,000mcg (120 VC's)

$29.80 NZD

  Doctor’s Best Biotin is a coenzyme and B vitamin that helps promote healthy hair, skin and nails. Clinical observations of biotin...

DRB 00173D RibosePowder250gP

D-Ribose featuring BioEnergy Ribose™ powder (250 gm)

$79.90 NZD

• D-Ribose featuring BioEnergy® Ribose supports energy production in the heart and muscles and promotes muscle recovery following exercise. • Contains BioEnergy® Ribose,...


5-HTP (100mg)

$38.60 NZD

  Doctor’s Best 5-HTP provides a drug-free support for sleep, mood, anxiety and stress 5-HTP aids serotonin production. Serotonin is the chemical...


Menopause Spectrum with EstroG-100 (30 VC's)

$51.70 NZD

  Doctor’s Best Menopause Spectrum™ with EstroG-100® is made with a patented blend of three herbal extracts that provide relief of menopause...


Ashwagandha Featuring Sensoril® 125mg (60 Veggie Caps)

$29.80 NZD

What is Doctor’s Best Ashwagandha? Doctor’s Best Ashwagandha Featuring Sensoril® is a scientifically validated preparation of the renowned Ayurvedic super plant Withania somnifera....


SAM-e 200mg (60 T's)

$69.70 NZD

Doctor’s Best SAMe is proven to enhance mood and promote cognitive health* SAMe is essential for the healthy metabolism of the major...


Glucosamine Chondroitin MSM with OptiMSM® (120 C's)

$49.70 NZD

  Doctor’s Best Glucosamine/Chondroitin/MSM featuring OptiMSM® supports joint structure, function and comfort* It is a potent combination of three proven, purified ingredients that...


Vitamin D3 1000IU (180 SG's)

$29.80 NZD

Doctor’s Best Vitamin D3 supports healthy bone density and structure* Vitamin D3 enhances and regulates immune function, supports optimal cardiovascular function and enhances...


Curcumin C³ Complex with Bioperine® 500mg (120s)

$99.70 NZD

Model: DRB-00107 - 120C

*Doctor's Best High Absorption Curcumin C³ with BioPerine® 500mg* provides a potent standardised extract of Curcuma longa root, known as turmeric. * **Turmeric* has...


Comprehensive Prostate Formula (120 VC's)

$59.80 NZD

Doctor’s Best Comprehensive Prostate Formula is a unique formula that offers comprehensive support for prostate health and supports normal urinary function and...

1 - 2

products per page     view all products