2-3 day shipping in continental US (Alaska and Hawaii excluded). Free Shipping on Orders Over $20.

IMMUNITY IN A BOTTLE

20% Off all Immune products, no coupon required

ENJOY THE SEASONS

20% Off all Immune products, no coupon required

SPRING IS IN THE AIR

20% Off all Immune products, no coupon required

HEALTH INTERESTS

  • Antioxidant
  • Bone Support
  • Brain Support
  • Eye Support
  • Heart Support
  • Children's Health

BEST SELLERS

Doctor's Best MSM Powder with OptiMSM, 8.8 oz (250 g)
Regular price
$13.99
Sale price
$13.99
Regular price
$13.99
Unit price
per 
Sold out
Doctor's Best Pure Collagen Types 1 and 3 Powder, 7.1 oz (200 g)
Regular price
$13.99
Sale price
$13.99
Regular price
$13.99
Unit price
per 
Sold out
Doctor's Best MSM with OptiMSM, 1,000 mg, 360 Capsules
Regular price
$21.99
Sale price
$21.99
Regular price
$21.99
Unit price
per 
Sold out
Doctor's Best Hyaluronic Acid + Chondroitin Sulfate, 180 Veggie Caps
Regular price
$28.99
Sale price
$28.99
Regular price
$28.99
Unit price
per 
Sold out
Doctor's Best Biotin, 10,000 mcg, 120 Veggie Caps
Regular price
$14.99
Sale price
$14.99
Regular price
$14.99
Unit price
per 
Sold out
Doctor's Best MSM with OptiMSM, 1,500 mg, 120 Tablets
Regular price
$10.99
Sale price
$10.99
Regular price
$10.99
Unit price
per 
Sold out
Doctor's Best Biotin, 5,000 mcg, 120 Veggie Caps
Regular price
$12.99
Sale price
$12.99
Regular price
$12.99
Unit price
per 
Sold out
Doctor's Best Collagen Types 1 and 3 with Peptan and Vitamin C, 1,000 mg, 540 Tablets
Regular price
$34.99
Sale price
$34.99
Regular price
$34.99
Unit price
per 
Sold out
Doctor's Best Hyaluronic Acid + Chondroitin Sulfate with BioCell Collagen, 60 Tablets
Regular price
$19.99
Sale price
$19.99
Regular price
$19.99
Unit price
per 
Sold out
Doctor's Best Hydrolyzed Keratin, 500 mg, 60 Veggie Caps
Regular price
$20.99
Sale price
$20.99
Regular price
$20.99
Unit price
per 
Sold out
Doctor's Best High Absorption Curcumin, 500 mg, 120 Capsules
Regular price
$28.99
Sale price
$28.99
Regular price
$28.99
Unit price
per 
Sold out
Doctor's Best Quercetin Bromelain, 180 Veggie Caps
Regular price
$21.99
Sale price
$21.99
Regular price
$21.99
Unit price
per 
Sold out
Doctor's Best Vitamin D3, 125 mcg (5,000 IU), 360 Softgels
Regular price
$12.99
Sale price
$12.99
Regular price
$12.99
Unit price
per 
Sold out
Doctor's Best High Potency Serrapeptase, 120,000 SPU, 90 Veggie Caps
Regular price
$28.99
Sale price
$28.99
Regular price
$28.99
Unit price
per 
Sold out
Doctor's Best High Absorption Curcumin, 1,000 mg, 120 Tablets
Regular price
$46.99
Sale price
$46.99
Regular price
$46.99
Unit price
per 
Sold out
Doctor's Best Vitamin D3, 50 mcg (2,000 IU), 180 Softgels
Regular price
$9.99
Sale price
$9.99
Regular price
$9.99
Unit price
per 
Sold out
Doctor's Best Vitamin C with Q-C, 1,000 mg, 360 Veggie Caps
Regular price
$33.99
Sale price
$33.99
Regular price
$33.99
Unit price
per 
Sold out
Doctor's Best Multi-Vitamin with Vitashine D3 and Quatrefolic, 90 Veggie Capsules
Regular price
$14.99
Sale price
$14.99
Regular price
$14.99
Unit price
per 
Sold out
Doctor's Best Vitamin C with Q-C, 1,000 mg, 120 Veggie Caps
Regular price
$17.99
Sale price
$17.99
Regular price
$17.99
Unit price
per 
Sold out
Doctor's Best Pure Vitamin C Powder with Q-C, 8.8 oz (250 g)
Regular price
$14.99
Sale price
$14.99
Regular price
$14.99
Unit price
per 
Sold out
Doctor's Best High Absorption Magnesium, 100 mg, 240 Tablets
Regular price
$21.99
Sale price
$21.99
Regular price
$21.99
Unit price
per 
Sold out
Doctor's Best High Absorption Magnesium, Lysinate Glycinate 100% Chelated, 52.5 mg, 120 Veggie Caps
Regular price
$12.99
Sale price
$12.99
Regular price
$12.99
Unit price
per 
Sold out
Doctor's Best High Absorption Magnesium, 100 mg, 120 Tablets
Regular price
$12.99
Sale price
$12.99
Regular price
$12.99
Unit price
per 
Sold out
Doctor's Best Vitamin D3, 125 mcg (5,000 IU), 360 Softgels
Regular price
$12.99
Sale price
$12.99
Regular price
$12.99
Unit price
per 
Sold out
Doctor's Best High Absorption Magnesium Powder, 7.1 oz (200 g)
Regular price
$18.99
Sale price
$18.99
Regular price
$18.99
Unit price
per 
Sold out
Doctor's Best Vitamin D3, 50 mcg (2,000 IU), 180 Softgels
Regular price
$9.99
Sale price
$9.99
Regular price
$9.99
Unit price
per 
Sold out
Doctor's Best Natural Vitamin K2 MK-7 with MenaQ7, 45 mcg, 180 Veggie Caps
Regular price
$25.99
Sale price
$25.99
Regular price
$25.99
Unit price
per 
Sold out
Doctor's Best Calcium Bone Maker Complex with MCHCal and VitaMK7, 180 Capsules
Regular price
$16.99
Sale price
$16.99
Regular price
$16.99
Unit price
per 
Sold out
Doctor's Best Natural Vitamin K2 MK-7 with MenaQ7, 100 mcg, 60 Veggie Caps
Regular price
$12.99
Sale price
$12.99
Regular price
$12.99
Unit price
per 
Sold out
Doctor's Best Vitamin D3, 125 mcg (5,000 IU), 720 Softgels
Regular price
$19.99
Sale price
$19.99
Regular price
$19.99
Unit price
per 
Sold out
Doctor's Best Doc's Kids, Vitamin D3 Gummies, All Natural Fruit, 25 mcg (1,000 IU), 60 Natural Fruit Pectin Gummies
Regular price
$13.99
Sale price
$13.99
Regular price
$13.99
Unit price
per 
Sold out

SEE WHAT OUR CUSTOMERS ARE SAYING

Doctor's Best High Absorption Iron with Ferrochel, 27 mg, 120 Tablets
01/28/22

Best Magnesium for sure
Posted on Feb 24, 2022|Verified Purchase|Rewarded Review
I was experiencing severe restless legs and I found it difficult to sleep more than a few hours at night. After doing some research, however, I figured out I only needed a tiny dosage of 200mg of magnesium per day in order to do away with my problem. Now I no longer have this problem! The best time for me to take them is before bed and it really helps me get some much-needed rest. And this magnesium by Doctor's best helped me a lot

iHerb Customer
Doctor's Best Vitamin D3, 125 mcg (5,000 IU), 360 Softgels
01/22/12

Doctor's BEST is truly that!
Posted on Feb 21, 2022|Verified Purchase|Rewarded Review
The quality of the supplement is very good! Extra virgin olive oil ingredient is the better choice (as far as carrier oil) as compared to the inflammatory oils (corn, soy) that other brands use. The size of the capsule helps a lot with its intake, the dosage per capsule is also very good and ideal for my daughter to replace my deficiency in this nutrient.

iHerb Customer
Doctor's Best PepZin GI, Zinc-L-Carnosine Complex, 120 Veggie Caps
01/28/22

Zinc and gut health.... perfect choice!!
Posted on Feb 27, 2022|Verified Purchase|Rewarded Review
Zinc from ingredients for the GUT..... doesn't get better! An antioxidant to boost the immune system, in a size and potency that makes it easy to add to daily regimen. Zinc is a MUST-have in any immune boost effort, and finding one to aid gut health was the undeniable best choice.

iHerb Customer

NOW TRENDING

  • Doctor's Best 5-HTP, Enhanced with Vitamins B6 & C, 120 Veggie Caps
    Regular price
    $13.99
    Sale price
    $13.99
    Regular price
    $13.99
    Unit price
    per 
    Sold out
  • Doctor's Best Acetyl-L-Carnitine with Biosint Carnitines, 500 mg, 60 Veggie Caps
    Regular price
    $14.99
    Sale price
    $14.99
    Regular price
    $14.99
    Unit price
    per 
    Sold out
  • Doctor's Best Alpha-Lipoic Acid, 600 mg, 60 Veggie Caps
    Regular price
    $14.99
    Sale price
    $14.99
    Regular price
    $14.99
    Unit price
    per 
    Sold out
  • Doctor's Best 5-HTP, 100 mg, 180 Veggie Caps
    Regular price
    $19.99
    Sale price
    $19.99
    Regular price
    $19.99
    Unit price
    per 
    Sold out
  • Doctor's Best Acetyl-L-Carnitine with Biosint Carnitines, 500 mg, 120 Veggie Caps
    Regular price
    $26.99
    Sale price
    $26.99
    Regular price
    $26.99
    Unit price
    per 
    Sold out