Key features. Vitamin C as ascorbic acid, using the Quali-C brand made in Scotland. Capsules at 500mg or 1000mg. Vitamin C contributes to the normal function of the immune system. Vitamin C contributes to normal energy-yielding metabolism. Vitamin C contributes to the reduction of tiredness and fatigue. Ascorbic acid works alongside vitamin E and glutathione in what is often called the body's antioxidant network, and it is also needed to make collagen. As a water-soluble vitamin it is not stored in large amounts, which is why a daily capsule is a common habit. The larger 360-capsule pot is handy if you take it every day. Available in 120 vegetarian capsules at 1000mg, 360 vegetarian capsules at 1000mg, and 120 vegetarian capsules at 500mg.
Key features. Vitamin C as ascorbic acid, using the Quali-C brand made in Scotland. Capsules at 500mg or 1000mg. Vitamin C contributes to the normal function of the immune system. Vitamin C contributes to normal energy-yielding metabolism. Vitamin C contributes to the reduction of tiredness and fatigue. Ascorbic acid works alongside vitamin E and glutathione in what is often called the body's antioxidant network, and it is also needed to make collagen. As a water-soluble vitamin it is not stored in large amounts, which is why a daily capsule is a common habit. The larger 360-capsule pot is handy if you take it every day. Available in 120 vegetarian capsules at 1000mg, 360 vegetarian capsules at 1000mg, and 120 vegetarian capsules at 500mg.
in 11 offers
The lowest price for Doctor's Best Vitamin C 500mg right now is $21.80 at HerbsDaily.com, compared across 11 retailers.
The all-time low was on 2 Aug 2026 β today's price is 23% above the lowest ever. It has been notably cheaper before β worth setting a price alert.
Doctor's Best Vitamin C 500mg
Key features. Vitamin C as ascorbic acid, using the Quali-C brand made in Scotland. Capsules at 500mg or 1000mg. Vitamin C contributes to the normal function of the immune system. Vitamin C contributes to normal energy-yielding metabolism. Vitamin C contributes to the reduction of tiredness and fatigue. Ascorbic acid works alongside vitamin E and glutathione in what is often called the body's antioxidant network, and it is also needed to make collagen. As a water-soluble vitamin it is not stored in large amounts, which is why a daily capsule is a common habit. The larger 360-capsule pot is handy if you take it every day. Available in 120 vegetarian capsules at 1000mg, 360 vegetarian capsules at 1000mg, and 120 vegetarian capsules at 500mg.
Key features. Vitamin C as ascorbic acid, using the Quali-C brand made in Scotland. Capsules at 500mg or 1000mg. Vitamin C contributes to the normal function of the immune system. Vitamin C contributes to normal energy-yielding metabolism. Vitamin C contributes to the reduction of tiredness and fatigue. Ascorbic acid works alongside vitamin E and glutathione in what is often called the body's antioxidant network, and it is also needed to make collagen. As a water-soluble vitamin it is not stored in large amounts, which is why a daily capsule is a common habit. The larger 360-capsule pot is handy if you take it every day. Available in 120 vegetarian capsules at 1000mg, 360 vegetarian capsules at 1000mg, and 120 vegetarian capsules at 500mg.
Prices last updated 6 Nov 2026.
Last updated at 06/11/2026 14:41:06
Doctors Best, Vitamin C With Q-C, 500 Mg, 120 Veggie Caps
Delivery $15.98
Doctor's Best Vitamin C with Quali-C (500mg) 120 vcaps
Delivery $14.36
Doctors Best - Vitamin C with Q -C 120s / Capsules
Delivery $8.50
Doctor's Best, Vitamin C , 500 mg, 120 Veggie Caps
Delivery $40
Doctor's Best Vitamin C with Q-C 120 Caps
Delivery $12.05
Doctor's Best Vitamin C with Q-C 500mg
Delivery between 13β20 Nov $18.63
Vitamin C with Q-C 120caps
Delivery $19.34
Doctors Best Vitamin C 500mg Supplement, for Men & Women, 120 Veg Caps
Delivery $40
Doctor's Best, Vitamin C with Q-C, 500mg, 120 Capsules
Delivery $14.95
Doctor's Best, Vitamin C with Q-C, 500mg, 120 Capsules
| Brand | Doctor's Best |
| Form | Capsule |
| Gluten-free | Yes |
| Vegan | Yes |
| Type | Vitamins |
Doctors Best, Vitamin C With Q-C, 500 Mg, 120 Veggie Caps
Delivery $15.98
Doctor's Best Vitamin C with Quali-C (500mg) 120 vcaps
Delivery $14.36
Doctors Best - Vitamin C with Q -C 120s / Capsules
Delivery $8.50
Doctor's Best, Vitamin C , 500 mg, 120 Veggie Caps
Delivery $40
Doctor's Best Vitamin C with Q-C 120 Caps
Delivery $12.05
| Brand | Doctor's Best |
| Form | Capsule |
| Gluten-free | Yes |
| Vegan | Yes |
| Type | Vitamins |