Apparel & Jewelry 
Electronics 
Health & Beauty 
Kids & Baby 
Sports & Outdoors 
Home & Garden 
Books & Media
Shop by Brand
Home » Health & Beauty » Vitamins & Supplements » Doctor's Best »

Browse Subcategories

Amino Acids
Amino Acids
Baby
Baby
Children's
Children's
Essential Fatty Acids
Essential Fatty Acids
Herbs
Herbs
Minerals
Minerals
Multivitamins
Multivitamins
Pets
Pets

Vitamins & Supplements

Items 1 to 14 of 14 total
View as:
Vitamin D3  
Vitamin D3 - Doctor's Best
          Vitamin D3 (cholecalciferol) is a nutrient that is critical to many bodily functions. Vitamin D3 is beneficial for supporting bone health, immune wellness, cardio- vascular function, and cellular metabolism, among others. Mounting research is highlighting the ever-increasing benefits of optimal vitamin D3 status. Vitamin D3 is known to interact with over 200 different genes and thus plays a crucia... [Read More]
  Available Options
180 gelcap, 5000 IU:   $11.99 Add to Cart
180 gelcap, 1000 IU:   $17.98 Add to Cart
180 gelcap, 2000 IU:   $17.98 Add to Cart
Best Vitamin C  
Best Vitamin C - Doctor's Best
          Doctor's Best Best Vitamin C featuring Quali-C provides a brand of ascorbic acid manufactured in Scotland prized for its quality and reliability. Ascorbic acid is invaluable to the body for its role as an electron donor, supporting numerous metabolic enzymes in addition to enhancing the body s total antioxidant potential. Essential for the synthesis of collagen, carnitine, and certain neurotrans... [Read More]
  Available Options
120 capsule, 500 mg:   $17.99 Add to Cart
120 capsule, 1000 mg:   $27.99 Add to Cart
250 gram powder, 1000 mg:   $19.99 Add to Cart
2 x 250 gram powder, 1000 mg:   $39.99 Add to Cart
Benfotiamine  
Benfotiamine - Doctor's Best
          Doctor's Best Best Benfotiamine (S-benzoylthiamine-O-monophosphate) is a synthetic derivative of thiamin, belonging to the family of compounds known as "allithiamines." Benfotiamine is fat-soluble and more bioavailable and physiologically active than thiamin. Benfotiamine raises the blood level of thiamin pyrophosphate (TPP), the biologically active co-enzyme of thiamin, and stimulates transketola... [Read More]
  Available Options
120 capsule, 80 mg:   $19.99 Add to Cart
120 capsule, 150 mg:   $29.99 Add to Cart
60 capsule, 300 mg:   $29.99 Add to Cart
D-Phenylalanine  
D-Phenylalanine - Doctor's Best
          Doctor's Best Best D-Phenylalanine is a non-protein amino acid related to the essential amino acid L-phenylalanine. D- and L-phenylalanine 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 an enzyme that degrades enkephalins, which are naturally occurring substances in the body that ... [Read More]
 
$27.99

Fully Active Folate  
Fully Active Folate - Doctor's Best
          Doctor's Best Folate Functional deficiencies of the essential nutrient folate (folic acid) are common, and can impair key life processes including gene-level regulation, cell growth patterns and tissue repair, from before birth through old age. Best Fully Active Folate provides MTHF (5-methyltetrahydrofolate), the folate form most directly required for DNA regulation and other fundamental metaboli... [Read More]
 
$13.99

Natural Vitamin K2 Featuring Mena Q7  
Natural Vitamin K2 Featuring Mena Q7 - Doctor's Best
          Doctor's Best Natural Vitamin K2 featuring MenaQ7 contains pure MenaQ7, the superior form of vitamin K for optimum bioavailability and delivery to the body. MenaQ7 is purified from natto, a traditional Japanese breakfast food made of fermented soybeans that is naturally rich in Vitamin K2. Not just a single vitamin, Vitamin K is a family of fat-soluble vitamins with similar structures, but differe... [Read More]
 
$19.99

Noni Concentrate  
Noni Concentrate - Doctor's Best
          Best Noni Concentrate is a whole-food supplement containing pure non-GMO Noni fruit powder (Morinda citrifolia). Recognized as a valuable food by the U.S. government for nearly 60 years, Noni fruit contains vitamin C, enzymes and other beneficial substances. Noni fruit has a long history of traditional use in South Pacific island societies as a versatile folk remedy. Science-Based Nutrition Diet... [Read More]
 
$18.99

Real Krill Oil  
Real Krill Oil - Doctor's Best
          This is a 100 percent authentic product from sustainably harvested Antarctic Krill. Doctor's Best Real Krill Antarctic Krill Oil Complex provides omega-3 EPA and DHA linked into phospholipids, together with the versatile protective carotenoid astaxanthin. These nutrients are vital lipids, building blocks for the cell membrane systems that manage most of the important life functions. Doctor's Best ... [Read More]
 
$26.99

Vegan D3  
Vegan D3 - Doctor's Best
          Vitamin D has well-established hormonal effects, and like other hormones it can act as a "molecular switch" by influencing the expression of multiple genes. One of its major hormonal effects is to regulate calcium's homeostasis activities in the body. This is of vital importance, since calcium is involved in the functioning of all cells but most cells require only very little of it. Vitamin D help... [Read More]
 
$14.99

Best Collagen Types 1 & 3 Powder  
Best Collagen Types 1 & 3 Powder - Doctor's Best
          Doctor's Best Collagen Types 1 and 3 is the major structural protein in connective tissue and the most abundant protein in the human body. Doctor's Best Collagen Types 1 & 3 is responsible for maintaining the strength and flexibility of bones, joints, skin, tendons, ligaments, hair, nails, blood vessels and eyes, among other tissues throughout the body. Doctor's Best Collagen Types 1 & 3 contains ... [Read More]
  Available Options
200 gram, 1 pack:   $12.49 Add to Cart
200 gram, 2 pack:   $24.49 Add to Cart
200 gram, 3 pack:   $36.99 Add to Cart
Trans-Resveratrol 600  
Trans-Resveratrol 600 - Doctor's Best
          Trans-Resveratrol 600 provides highly concentrated levels of trans-resveratrol from the root of the Japanese knotweed (polygonum cuspidatum). Japanese knotweed provides one of the highest resveratrol concentrations found in nature. Resveratrol exists in both trans-and cis-forms. However, published research suggests that only thetrans-form has valuable biological activity. Acts as a potent antioxi... [Read More]
 
Suggested: $69.99
$40.99
Save 41%

Natural Vitamin K2 MK-7 with MenaQ7  
Natural Vitamin K2 MK-7 with MenaQ7 - Doctor's Best
          Natural Vitamin K2 MK-7 with MenaQ7 provides the superior form of vitamin K for optimum bioavailability and delivery to the body. Vitamin K isn t one vitamin, it s a family of fat-soluble vitamins with similar chemical structures but different metabolic properties. K2 belongs to a group of vitamin K compounds called menaquinones, which show greater bioactivity when compared to K1, the ordinary... [Read More]
 
Suggested: $20.99
$14.99
Save 29%

Biotin Gummies  
Biotin Gummies - Doctor's Best
          Nourish your beauty from the inside out. These Biotin gummies provide a high potency and delicious dose of biotin to maintain healthy skin, hair, and nails. Biotin is also an integral part of enzyme activity to break down and convert fatty acids and carbohydrates into energy. Go ahead, find your inner glow. Biotin is an important B-vitamin that provides dietary support for healthy hair, skin and n... [Read More]
 
Suggested: $14.99
$7.89
Save 47%

Vitamin C Gummies  
Vitamin C Gummies - Doctor's Best
          Vitamin C is indispensable to your body for its role in the synthesis of collagen, carnitine, and certain brain chemical transmitters. A daily dose of these delicious gelatin free gummies give fundamental support for your immune system, brain, eyes, heart and circulation. Vitamin C is the most important water-soluble antioxidant in your body and is obtained only from dietary sources. Commonly fou... [Read More]
 
Suggested: $23.99
$11.49
Save 52%