Doctor's Best Vitamin C with PureWay-C 60 Tablets – Sustained-Release Vitamin C for Superior Absorption & Immune SupportDoctor's Best Vitamin C with PureWay-C provides vitamin C in the patented PureWay-C® form — a unique lipid-metabolite complex that has been shown in clinical studies to...

Helps boost nitric oxide (NO) levels to support overall cardiovascular health* Helps support immune system* Helps support athletic endurance* Helps support recovery from athletic performance* Non-GMO Gluten Free Soy Free Vegan

Stay young at heart. Take control of your cardiovascular health, with Vitamin K2 + D3. Specially formulated with MenaQ7®, the superior form of vitamin K, this daily supplement helps support your vessel walls and arteries.* This thoughtful dosage of MenaQ7®, when paired with vitamin...

Doctor's Best L-Tyrosine 500mg 120 VegeCapsulesDoctor's Best L-Tyrosine provides 500mg of the amino acid L-tyrosine per capsule. Vegan, non-GMO, and manufactured to GMP standards. L-Tyrosine 500mg 120 VegeCapsules — GMP certified, non-GMO Frequently Asked QuestionsWhen should I take L-Tyrosine?Take on an empty stomach 30–60...

- **Doctor’s Best 5-HTP 100 mg Caps**: This product is thoughtfully designed to support your overall well-being by promoting healthy serotonin levels in the brain. Derived from the Griffonia simplicifolia plant, 5-HTP is a natural supplement that aims to foster emotional balance and enhance...

Highly Bioavailable Chelated Magnesium for Muscles, Nerves & SleepDoctor's Best High Absorption Magnesium uses TRAACS® chelated magnesium — magnesium bonded to amino acids (glycinate and lysinate) for superior absorption and gut tolerance compared to cheaper oxide or carbonate forms. It’s one of the best-selling...

- **SAM-E 400 DOUBLE STRENGTH 30 Tablets** This product is thoughtfully formulated to support your emotional well-being and cognitive health. Backed by nearly 40 years of research, SAM-e is a naturally occurring compound that can play a beneficial role in promoting mood balance and...

LUTEIN WITH LUTEMAX 20MG SoftgelsDRB-00369 See for yourself. Lutein with Lutemax® 2020 is made with a natural, ethically sourced extract from Marigold flowers containing several macular carotenoids that are essential for eye health: lutein and zeaxanthin. These carotenoids help protect your eyes from harmful...

Trying to hit your fitness goals? Look no further than our L-Carnitine Fumarate, a powerful combination that helps the body burn fat for energy and maintain a healthy heart and cardiovascular system.* L-Carnitine is a nutrient that promotes energy production and helps the body...

Well, you found it. Our High Absorption Magnesium is hands down our most popular product. In addition to tablets and our easy-to-swallow veggie capsules, it’s also available in a powder formula for those looking for an easy-to-take alternative. Loved by people in more than...

Doctor’s Best Fucoidan 70% enhances immune system function.* Helps provide antioxidant protection* Research also suggests that fucoidan may possess significant antioxidant activity.* Non-GMO Gluten Free Vegan

FAST ACTING ARGININE COMPLEX 60 TabletsDRB-00406 Helps support arginine and silicon levels* Helps boost nitric oxide (NO) levels to support overall cardiovascular health* Fast acting advanced ingredient that works within 15 minutes, delivering benefits that last up to 6 hours with a single dose*...

Doctor's Best Nattokinase 2000 FU 90 Veggie Caps provides a purified, vitamin K-free nattokinase enzyme derived from fermented natto, the traditional Japanese fermented soybean food. 2000 FU (Fibrinolytic Units) Vitamin K-free Derived from fermented natto Non-GMO | Gluten Free | Vegan | 90 veggie...

Doctor's Best NAC Regulators provides N-Acetyl-L-Cysteine (NAC) combined with molybdenum and riboflavin-5-phosphate (activated B2). NAC is a precursor for glutathione — the body's primary intracellular antioxidant.* NAC — a glutathione precursor* Molybdenum* Riboflavin-5-P (FAD)* Antioxidant support* Available in 60vc and 180vc | Non-GMO |...

Doctor's Best Lutein with Lutemax® 2020 is a comprehensive eye health formula featuring FloraGLO® lutein and Lutemax® 2020 — the only macular carotenoid complex clinically shown to improve three macular pigments: lutein, RR-zeaxanthin, and RS (meso)-zeaxanthin. Together these pigments form the macular pigment optical...

Doctor's Best Fast Acting Arginine Complex with Nitrosigine® 60 Tablets provides a patented, clinically studied arginine silicon complex (inositol-stabilised arginine silicate) that generates nitric oxide significantly faster than standard L-Arginine. Nitrosigine® is shown to increase plasma arginine levels within 15 minutes and sustain nitric...

Doctor's Best D-Ribose BioEnergy Ribose® provides pure D-ribose — the five-carbon sugar that is the rate-limiting building block for ATP (adenosine triphosphate) synthesis. Unlike regular sugars, D-ribose is not used for immediate energy but serves as the structural backbone of ATP, ADP, AMP, and...

Doctor's Best Biotin supports healthy hair, skin, and nails through biotin's essential role in keratin infrastructure — the structural protein matrix of hair, nails, and skin. Biotin (vitamin B7) is a water-soluble B vitamin that acts as a coenzyme in fatty acid synthesis and...

Doctor's Best Acetyl-L-Carnitine (ALCAR) 500mg delivers a highly bioavailable form of L-Carnitine that efficiently crosses the blood-brain barrier. Unlike standard L-Carnitine, which primarily supports fat metabolism in muscles, ALCAR has significant nootropic and neuroprotective properties — it supports the production of acetylcholine, the key...

VITAMIN C WITH Q-C 250 GramsDRB-00333 A better way to C. Vitamin C (or ascorbic acid) has made countless headlines for its impressive health benefits, and for good reason. This essential vitamin is a powerful antioxidant that bolsters your immune system.* And since our...

VEGAN GLUCOSAMINE CHONDROITIN MSM 120 Veggie CapsDRB-00500 Revolutionary plant-based formula. Healthy joints are essential to move freely and without discomfort. This one of a kind formula provides a powerful combination of three proven, purified ingredients that support healthy joints and joint function: glucosamine, chondroitin...

Description Science-Based Nutrition™ Consistent Quality Efficacy - Potency Tested Dietary Supplement 400 mg Per Serving Supports NAD+ Production Non-GMO Gluten Free Soy Free Vegan Increases Energy Levels NMN, is a precursor to NAD+ which has been shown to restore vital physiologic systems that play...

Doctor's Best CoQ10 L-Carnitine Magnesium 90 Veggie Caps combines three nutrients involved in mitochondrial energy production. CoQ10 is a component of the electron transport chain that generates ATP. L-Carnitine transports fatty acids into mitochondria for fuel. Magnesium activates the ATP molecule itself.* CoQ10 —...

Doctor's Best SAM-e (S-Adenosyl-L-Methionine) uses pharmaceutical-grade, enteric-coated SAM-e tablets. Available in 200mg and 400mg (double strength) doses. Enteric-coated tablets Available in 200mg and 400mg (double strength) | Pharmaceutical grade Suggested Use: Take on an empty stomach. 200mg: 1–2 tablets daily. 400mg: 1 tablet daily....

Doctor's Best Real Krill 350mg features Superba 2® Antarctic krill oil — sustainably sourced from 100% pure Antarctic Krill (Euphausia superba) using Eco-Harvesting® methods and patented technology that removes unwanted salts and impurities. Krill oil provides omega-3 EPA and DHA in phospholipid form —...

Doctor's Best R-Lipoic Acid with BioEnhanced® Na-RALA 100mg provides the R-enantiomer of alpha-lipoic acid, stabilised as the sodium salt (Na-RALA) using a patented BioEnhanced® process. BioEnhanced® Na-RALA — stabilised, pure R-form alpha-lipoic acid Non-GMO | Gluten Free | Vegan | 60 veggie capsules Suggested...

Doctor's Best Quercetin Bromelain 180 Veggie Caps combines two powerful anti-inflammatory nutrients in one formula. Quercetin is a plant-derived bioflavonoid with potent antioxidant and anti-inflammatory properties, including the ability to inhibit histamine release from mast cells (supporting allergy-related symptoms) and inhibit inflammatory signalling enzymes....

Doctor's Best Proteolytic Enzymes 90 Veggie Caps is a high-potency enzyme formula featuring Bromelain, Papain, Protease, and Serratiopeptidase — four complementary proteolytic enzymes.* Bromelain, Papain, Protease, and Serratiopeptidase blend* Taken between meals* Non-GMO | Gluten Free | Vegan | 90 veggie capsules Suggested Use:...

Doctor's Best NMN 200mg 60 Veggie Caps provides nicotinamide mononucleotide — a direct precursor to NAD+ (nicotinamide adenine dinucleotide), the essential coenzyme that powers cellular energy metabolism and serves as a critical substrate for longevity-associated enzymes including sirtuins and PARPs. NAD+ levels decline significantly...

Doctor's Best Natural Vitamin K2 MK-7 with MenaQ7® features a bioavailable form of vitamin K2 — menaquinone-7 (MK-7) from MenaQ7®. Available in 45mcg (plain MK-7) and a combination with D3.* MenaQ7® MK-7 form* Activates osteocalcin for calcium integration into bone* Available as plain MK-7...

Doctor's Best MSM with OptiMSM® provides methylsulfonylmethane — an organic sulphur compound and one of the most widely used joint support supplements in the world. MSM is the body's primary dietary source of bioavailable sulphur, which is essential for the synthesis of collagen, keratin,...

Doctor's Best L-Tyrosine 500mg 120 Veggie Caps provides a free-form, crystalline amino acid. Free-form, crystalline L-Tyrosine Non-GMO | Gluten Free | Vegan | 120 veggie capsules Suggested Use: As a dietary supplement, take 1–2 capsules daily on an empty stomach, or as directed by...

L-Theanine with Suntheanine® for Calm Focus & Stress ReliefDoctor's Best L-Theanine features Suntheanine® — the only pure L-isomer form of theanine, produced via a patented enzymatic process that mirrors how it naturally occurs in green tea. L-Theanine promotes a relaxed, calm mental state without...