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12-Hour Vitamin C 500mg 12-Hour Vitamin C 500mg 60 tab.
Doctor's Best
15.64 $

12-Hour Vitamin C 500mg 60 tab.

Servings: 60 tab.
EU Stock
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from the dispatch
For free shipping is missing: 80.00 $
15.64 $With VAT
0.26 $ / serving

From 3 units only 15.33 $ /Units. -2%

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  • Vitamin C in the form of PureWay-C® characterized by high assimilability
  • Enriched in citrus bioflavonoids for even better effectiveness
  • Influences the synthesis of collagen increasing functionality of connective tissue
  • Increases the functions of the immune system
  • Effective form of cancer prophylaxis
  • Reduces oxidative stress
  • Has anti-inflammatory effect

DOCTOR'S BEST 12-Hour Vitamin C is a dietary supplement containing vitamin C in the form of PureWay-C®. It is characterized by perfect bioavailability, thanks to which it is more effective in supplementation that pure ascorbic acid.

PureWay-C® - is the name of a patented complex containing ascorbic acid along with lipid metabolites, with which vitamin C appears in its natural sources. They decide about higher bioavailability of ascorbic acid coming from fruits. Closing the components increasing assimilability of vitamin C along with it in one capsule guarantees its maximal absorbability. It is addressed to people who are aware of the importance of supplementing this vitamin and allows to supplement it in a complex way, at the amount that we could not achieve eating only fruits (despite great assimilability, natural sources contain relatively little vitamin C). In the supplement, there is also an additive of citrus bioflavonoids, which also positively influence the assimilability of vitamin C

Vitamin C – unsaturated polyhydroxy alcohol, playing many incredibly important functions in the human organism. Contrary to a common, erroneous opinion, a biologically active isomer, L-ascorbic acid, turns polarized light right, therefore, it is dextrorotatory. It naturally occurs mainly in fruits and among its main sources there is acerola, which provides more than 1,5g of vitamin C per 100g.

Safety of supplementation
An incredibly important matter when it comes to taking large doses of vitamin C is its safety. Research shows lack of negative reactions of the organism even at the doses of several grams per day. The first symptom of overdosing vitamin C is diarrhea. In the situations of supplementation with extremely high doses of vitamin C, it allows to determine maximal tolerance of this compound by our organism. However, studies in majority do not confirm the reasonability of supplementation with the doses of a few grams per day. However, wise increase of vitamin C supply has many positive aspects.

Reduction of oxidative stress
Vitamin C is a strong antioxidant. Its supplementation allows to decrease the amount of free radicals generating oxidative stress in the organism. It is a phenomenon negatively influencing the functioning of cells and leads to their accelerated apoptosis. Reduction of oxidative stress is the way to slow down aging processes. Decreased amount of free radicals also means decreased risk of cancer. Moreover, it was proven that protective effect on oxidative stress in testicles may positively influence testosterone secretion.

Stimulation of immune system functions
Supplementation with vitamin C positively influences the functioning of the immune system. Stimulation of its functions enables more efficient immune response, which is reflected in shortening the time of s disease. Increasing the supply of vitamin C is also indicated as the way to improve immunity during the periods of increased rate of all kinds of colds and infections.

Improvement of sugar metabolism
Vitamin C, thanks to its antioxidant properties may have protective effect on beta cells of pancreas, responsible for secreting insulin. In this way, it positively influences physiological secretion of this hormone, affecting at the same time, the systemic carbohydrate metabolism. Moreover, vitamin C may increase insulin sensitivity of cells, which is also conducive to maintaining efficient sugar metabolism.

Cancer prophylaxis
Supplementation with vitamin C is also indicated as the form of cancer prophylaxis. This effect is especially visible when it comes to lung and breast cancer. There are also some premises correlating increased supply of ascorbic acid and decreased mortality of already sick people.

Improves joint functions
Vitamin C is present on the pathway of collagen synthesis, conditioning it. In this way, its properly high supply enables the production of a basic protein, building connective tissue. It is reflected in increased mechanical endurance of the structures building joints and general improvement of their functionality. 

Summing up, vitamin C is an incredibly universal supplement, the increased supply of which brings many pro-health benefits. Ascorbic acid in the form of PureWay-C® contained in the product DOCTOR'S BEST 12-Hour Vitamin C, enriched in bioflavonoids, is a great source of vitamin C. It is characterized by the highest assimilability, similar to natural sources, which enables truly effective supplementation. 

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Container size: 60 tabletsServing size: 1 tabletServings per container: 60
per 1 tabletamount%DV
Vitamin C (as PureWay-C and ascorbyl palmitate)500 mg833%
Citrus bioflavonoids50 mg-

Other ingrednients

Hydroxypropyl methylcellulose, stearic acid, silicon dioxide and magnesium stearate (vegetable source)

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Vitamin C


Vitamin C (ascorbic acid) it is a vitamin soluble in body fluids, can be taken from foods (fruits and vegetables), or as drug derived synthetically. The largest of its resources can be found in broccoli, Brussels sprout, kale, black currant fruit and hawthorn, citrus fruits, tomatoes, Savoy cabbage, potatoes. In fact, intake of vitamin C of the food products does not limit the absorbed quantity. Vitamin C (ascorbic acid) is a potent antioxidant, it is an antitoxic, increasing the immune system due to the elimination of risk of bacterial contamination. Vitamin C prevents rupture of blood vessels, affects the blood cholesterol level. It substantially increases the absorption of iron. Inhibits the growth of cancer cells. Lowers stress levels.
Vitamin C deficiency causes abnormal development of connective tissue, cracking capillaries, abnormal calcification of bone tissue, impaired
absorption of iron, scorbutus. With the lack of vitamin C, all kinds of injuries do not heal up properly. Vitamin C deficiency can be caused by smoking; each cigarette is destroying up to 100 mg of vitamin C.
Dosage: The demand is 60-80 mg daily. It does not limit the ability to consume higher doses. Some side effects may occur only with longer
taking of synthetic vitamin C.



PureWay-C, is a special patented formula containing ascorbic acid (vitamin C) and components stabilizing its operation, such as vegetable waxes and bioflavonids complex of citrus fruits (bitter orange and grapefruit). Vitamin C (ascorbic acid) is a potent antioxidant, is antitoxic (inhibits the development of free radicals and other reactive oxygen species), increasing the immune system (immune) due to the elimination of bacterial contamination risk. Vitamin C prevents rupture of blood vessels, affects the blood cholesterol level. It substantially increases the absorption of non-haem iron. It stimulates the production of collagen. It is used in treatment of injuries, accelerates wound healing. It participates in the synthesis of a number of hormones and neurotransmitters and l-carnitine. Inhibits the growth of cancer cells. Lowers stress levels. Reduces the risk of cardiovascular disease (coronary artery disease). Vitamin C deficiency causes abnormal development of connective tissue, cracking of capillaries, abnormal calcification of bone tissue, strained absorbed iron, scorbutus. In the absence of vitamin C, all kinds of injuries do not heal up properly. Vitamin C deficiency can be caused by smoking; each cigarette destroys up to 100 mg of vitamin C. In the complex it is enhanced with bioflavonoids from citrus fruit (bitter orange and grapefruit) prolonging the time of its activity in the body and the increase of the antioxidant potential. Plant waxes protect against irritation of mucous membranes of the digestive tract. PureWay-C is available as mono-preparation supplement and as a component of multivitamin supplements,, available at
Dosage: in sports supplementation 250 - 1000 mg / 24h

Citrus Bioflavonoids


Citrus bioflavonoids (flavanones) - are found in citrus fruits (oranges and bitter grapefruit) and contain naringenin and naringenin with a strong antioxidant and anti-inflammatory action and enhancing metabolism of a number of substances. Increase immunity and strengthen the walls of blood vessels. Reduce the secretion of cortisol, while increasing the norepinephrine hormone allowing for the reduction of body fat. Citrus flavonoids are an ingredient of supplements in the category of "health and beauty", vitaminizing supplements, thermogenics, herbal blends supporting the functioning of the endocrine system.


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