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Vitamin C 1000mg Time Release | High Bioavailability | Immune Support | 300 Capsules

Each capsule delivers 1000mg of Vitamin C (ascorbic acid) using a time-release matrix that gradually releases the dose over several hours rather than all at once. Sustained release maintains more consistent blood levels of Vitamin C throughout the day, reduces urinary excretion of excess Vitamin C, and may be gentler on the stomach than immediate release high-dose Vitamin C. Supports immune function, antioxidant protection, and collagen synthesis. 

Who This Is For

  • Adults seeking daily immune function support, antioxidant protection, and collagen synthesis support from a high-dose Vitamin C supplement
  • Those who want sustained release over several hours rather than an immediate-release spike and rapid decline
  • Those who have experienced digestive discomfort with immediate-release high-dose Vitamin C
  • Active individuals and those under physical or psychological stress with elevated Vitamin C requirements
  • Those wanting a 300 day supply of 1000mg Vitamin C in a single bottle
  • Vegans and vegetarians seeking a fully plant-based capsule formula
  • Those seeking a Canadian made supplement

Source

Vitamin C (ascorbic acid) used in supplements is produced by fermentation of glucose, typically derived from corn or other plant-based carbohydrate sources, followed by chemical conversion to ascorbic acid. The resulting ascorbic acid is chemically identical to the Vitamin C found naturally in fruits and vegetables. The time-release matrix uses hydroxypropyl methylcellulose (HPMC), a plant-derived polymer widely used in pharmaceutical and supplement manufacturing. 

Why Time Release?

Vitamin C is a water-soluble vitamin that the body cannot produce or store. At high doses, intestinal absorption becomes saturated and excess Vitamin C is rapidly excreted in urine, meaning a large immediate-release dose may result in significant urinary loss before it can be absorbed. Time-release delivery gradually releases Vitamin C over several hours, maintaining more consistent blood levels, reducing the peak concentration that triggers urinary excretion, and providing sustained support throughout the day from a single capsule. The gradual release also reduces the likelihood of digestive discomfort that some individuals experience with immediate-release high-dose Vitamin C.

Key Benefits

  • Immune function support Vitamin C supports the production and function of white blood cells including lymphocytes and phagocytes. It accumulates in immune cells and is rapidly consumed during immune responses. Supports skin and mucous membrane barrier integrity as the body's first line of defense.
  • Antioxidant protection Vitamin C is one of the body's most important water-soluble antioxidants. It neutralizes free radicals and reactive oxygen species, helps regenerate Vitamin E and other antioxidants, and protects cells from oxidative damage.
  • Collagen synthesis Vitamin C is a required cofactor for enzymes involved in collagen synthesis. Without adequate Vitamin C, the body cannot produce stable, functional collagen. Supports skin, cartilage, bone, gum, and blood vessel integrity.
  • Iron absorption support Vitamin C enhances the absorption of non-heme iron from plant-based foods, supporting healthy red blood cell production.
  • Time-release delivery Sustained release over several hours. More consistent blood levels than immediate-release. Reduced urinary excretion of excess Vitamin C. Gentler on the stomach.
  • 1000mg per capsule As ascorbic acid. 300 day supply at 1 capsule per day.
  • Made in Canada Quality controlled facility.
  • Vegan and non-GMO Gluten free, soy free, dairy free. Hypromellose vegan capsule.

Medicinal Ingredients (per capsule)

  • Vitamin C (ascorbic acid) 1000mg

Non-medicinal ingredients: Hypromellose (vegan capsule), hydroxypropyl methylcellulose (time-release matrix), microcrystalline cellulose, magnesium stearate (vegetable source). Non-GMO, gluten free, soy free, dairy free. No artificial colours, flavours, sweeteners, or preservatives.

Quality and Trust

  • Made in Canada Quality controlled facility
  • Vitamin C as ascorbic acid Pharmaceutical grade purity
  • Time-release matrix Hydroxypropyl methylcellulose for sustained release over several hours
  • Vegan capsule Hypromellose, no gelatin or animal-derived ingredients
  • Non-GMO, gluten free, soy free, dairy free
  • 300 capsules 300 day supply at 1 capsule per day

How to Use

Adults: Take 1 capsule once per day with food. Taking with food may further reduce the likelihood of digestive discomfort. The time-release formula provides sustained support throughout the day from a single daily capsule. Vitamin C is water-soluble and not stored in the body, making consistent daily use important.

Storage

Store in a cool, dry place away from direct sunlight and moisture. Keep the bottle tightly sealed after each use. Keep out of reach of children.

Safety and Cautions

Consult a healthcare practitioner before use if you are pregnant or breastfeeding, taking medications, or have kidney disease, kidney stones, or iron overload disorders. High-dose Vitamin C may cause digestive discomfort in some individuals. Vitamin C may interact with certain medications including chemotherapy drugs and statins. The tolerable upper intake level for Vitamin C is 2000mg per day for adults. Keep out of reach of children.

Vitamin C 1000mg Time Release | High Bioavailability | Immune Support | 300 Capsules

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Vitamin C 1000mg Time Release | High Bioavailability | Immune Support | 300 Capsules

Each capsule delivers 1000mg of Vitamin C (ascorbic acid) using a time-release matrix that gradually releases the dose over several hours rather than all at once. Sustained release maintains more consistent blood levels of Vitamin C throughout the day, reduces urinary excretion of excess Vitamin C, and may be gentler on the stomach than immediate release high-dose Vitamin C. Supports immune function, antioxidant protection, and collagen synthesis. 

Who This Is For

  • Adults seeking daily immune function support, antioxidant protection, and collagen synthesis support from a high-dose Vitamin C supplement
  • Those who want sustained release over several hours rather than an immediate-release spike and rapid decline
  • Those who have experienced digestive discomfort with immediate-release high-dose Vitamin C
  • Active individuals and those under physical or psychological stress with elevated Vitamin C requirements
  • Those wanting a 300 day supply of 1000mg Vitamin C in a single bottle
  • Vegans and vegetarians seeking a fully plant-based capsule formula
  • Those seeking a Canadian made supplement

Source

Vitamin C (ascorbic acid) used in supplements is produced by fermentation of glucose, typically derived from corn or other plant-based carbohydrate sources, followed by chemical conversion to ascorbic acid. The resulting ascorbic acid is chemically identical to the Vitamin C found naturally in fruits and vegetables. The time-release matrix uses hydroxypropyl methylcellulose (HPMC), a plant-derived polymer widely used in pharmaceutical and supplement manufacturing. 

Why Time Release?

Vitamin C is a water-soluble vitamin that the body cannot produce or store. At high doses, intestinal absorption becomes saturated and excess Vitamin C is rapidly excreted in urine, meaning a large immediate-release dose may result in significant urinary loss before it can be absorbed. Time-release delivery gradually releases Vitamin C over several hours, maintaining more consistent blood levels, reducing the peak concentration that triggers urinary excretion, and providing sustained support throughout the day from a single capsule. The gradual release also reduces the likelihood of digestive discomfort that some individuals experience with immediate-release high-dose Vitamin C.

Key Benefits

  • Immune function support Vitamin C supports the production and function of white blood cells including lymphocytes and phagocytes. It accumulates in immune cells and is rapidly consumed during immune responses. Supports skin and mucous membrane barrier integrity as the body's first line of defense.
  • Antioxidant protection Vitamin C is one of the body's most important water-soluble antioxidants. It neutralizes free radicals and reactive oxygen species, helps regenerate Vitamin E and other antioxidants, and protects cells from oxidative damage.
  • Collagen synthesis Vitamin C is a required cofactor for enzymes involved in collagen synthesis. Without adequate Vitamin C, the body cannot produce stable, functional collagen. Supports skin, cartilage, bone, gum, and blood vessel integrity.
  • Iron absorption support Vitamin C enhances the absorption of non-heme iron from plant-based foods, supporting healthy red blood cell production.
  • Time-release delivery Sustained release over several hours. More consistent blood levels than immediate-release. Reduced urinary excretion of excess Vitamin C. Gentler on the stomach.
  • 1000mg per capsule As ascorbic acid. 300 day supply at 1 capsule per day.
  • Made in Canada Quality controlled facility.
  • Vegan and non-GMO Gluten free, soy free, dairy free. Hypromellose vegan capsule.

Medicinal Ingredients (per capsule)

  • Vitamin C (ascorbic acid) 1000mg

Non-medicinal ingredients: Hypromellose (vegan capsule), hydroxypropyl methylcellulose (time-release matrix), microcrystalline cellulose, magnesium stearate (vegetable source). Non-GMO, gluten free, soy free, dairy free. No artificial colours, flavours, sweeteners, or preservatives.

Quality and Trust

  • Made in Canada Quality controlled facility
  • Vitamin C as ascorbic acid Pharmaceutical grade purity
  • Time-release matrix Hydroxypropyl methylcellulose for sustained release over several hours
  • Vegan capsule Hypromellose, no gelatin or animal-derived ingredients
  • Non-GMO, gluten free, soy free, dairy free
  • 300 capsules 300 day supply at 1 capsule per day

How to Use

Adults: Take 1 capsule once per day with food. Taking with food may further reduce the likelihood of digestive discomfort. The time-release formula provides sustained support throughout the day from a single daily capsule. Vitamin C is water-soluble and not stored in the body, making consistent daily use important.

Storage

Store in a cool, dry place away from direct sunlight and moisture. Keep the bottle tightly sealed after each use. Keep out of reach of children.

Safety and Cautions

Consult a healthcare practitioner before use if you are pregnant or breastfeeding, taking medications, or have kidney disease, kidney stones, or iron overload disorders. High-dose Vitamin C may cause digestive discomfort in some individuals. Vitamin C may interact with certain medications including chemotherapy drugs and statins. The tolerable upper intake level for Vitamin C is 2000mg per day for adults. Keep out of reach of children.

Supplement Facts

Supplement Facts

Serving Size: 1 Capsule

Servings Per Container: 300

Ingredient
Amount Per
Serving
% Daily
Value
Vitamin C (Ascorbic Acid)
1,000 mg

† Daily Value not established

Other Ingredients:
Hypromellose Phthalate (Vegetable Capsule Shell), Magnesium Stearate

Clinical Research

Vitamin C and immune function: a review of the evidence

Nutrients, 2017

This comprehensive review examined the role of vitamin C in immune function across multiple clinical and mechanistic studies. The review found that vitamin C accumulates in immune cells at concentrations many times higher than in plasma, supports the production and function of neutrophils, lymphocytes, and phagocytes, and is rapidly consumed during immune responses. The authors concluded that consistent daily vitamin C supplementation supports immune readiness and that deficiency impairs multiple aspects of immune function.

Vitamin C is an essential factor on the anti viral immune responses through the production of interferon at the initial stage of influenza virus infection

Mediators of Inflammation, 2009

This study examined the role of vitamin C in antiviral immune responses and found that vitamin C supports interferon production at the initial stage of viral infection, enhancing the innate immune response. The research confirmed vitamin C's role in supporting immune cell function and antioxidant protection during immune challenges, consistent with its licensed use for immune function support.

Prolonged release vitamin C supplementation: pharmacokinetics and bioavailability

European Journal of Clinical Pharmacology, 2001

This pharmacokinetic study compared blood levels of vitamin C following immediate-release and prolonged release (time-release) formulations at equivalent doses. The study found that time release vitamin C produced more consistent plasma vitamin C levels over 24 hours, reduced the peak concentration associated with urinary excretion, and maintained higher sustained blood levels compared to immediate release at the same dose. The authors concluded that time release delivery improves the bioavailability of high dose vitamin C supplementation.

Research information is provided for educational purposes and does not replace the product's approved label information.

Frequently Asked Questions

What is time-release vitamin C and how does it work?

Time release vitamin C uses a sustained release matrix (typically hydroxypropyl methylcellulose) that gradually releases ascorbic acid over several hours rather than all at once. This maintains more consistent blood levels of vitamin C throughout the day, reduces the peak concentration that triggers urinary excretion of excess vitamin C, and may be gentler on the stomach than immediate release high dose vitamin C. A single daily capsule provides sustained support throughout the day.

What does vitamin C do in the body?

Vitamin C (ascorbic acid) is an essential water soluble vitamin with multiple roles: it supports immune function by supporting white blood cell production and function, acts as a potent water soluble antioxidant neutralizing free radicals, is a required cofactor for collagen synthesis enzymes, enhances non-heme iron absorption from plant based foods, and supports skin, cartilage, bone, gum, and blood vessel integrity. The body cannot produce or store vitamin C, making consistent daily intake essential.

Why take 1000mg of vitamin C per day?

The recommended dietary allowance for vitamin C is 75–90mg per day for adults, but higher doses of 500–1000mg are commonly used for immune support, antioxidant protection, and collagen synthesis. At high doses, intestinal absorption becomes partially saturated and excess is excreted in urine time release delivery reduces this urinary loss by spreading absorption over several hours. Consult a healthcare practitioner to determine the dose appropriate for your individual needs

Is time-release vitamin C better than regular vitamin C?

For high dose vitamin C supplementation (500–1000mg), time release delivery offers advantages over immediate release: more consistent blood levels throughout the day, reduced urinary excretion of excess vitamin C, and reduced likelihood of digestive discomfort. For lower doses (under 200mg), the difference is less significant as absorption is not saturated. Time release is particularly relevant for those taking 1000mg per day who want sustained support from a single daily capsule.

How does vitamin C support immune function?

Vitamin C accumulates in immune cells particularly neutrophils, lymphocytes, and phagocytes at concentrations many times higher than in plasma. It supports the production and function of these white blood cells, supports skin and mucous membrane barrier integrity as the body's first line of defense, and is rapidly consumed during immune responses. Consistent daily supplementation helps maintain adequate vitamin C levels to support immune readiness.

How does vitamin C support collagen synthesis?

Vitamin C is a required cofactor for prolyl hydroxylase and lysyl hydroxylase the enzymes that stabilize the collagen triple helix structure. Without adequate vitamin C, the body cannot produce stable, functional collagen. Collagen is the most abundant structural protein in the body, providing integrity to skin, cartilage, bone, gums, tendons, and blood vessel walls. Consistent daily vitamin C intake is essential for ongoing collagen production and tissue maintenance.

Can vitamin C help with iron absorption?

Yes. Vitamin C enhances the absorption of non heme iron the form of iron found in plant-based foods such as legumes, grains, and leafy greens. Vitamin C reduces ferric iron (Fe³⁺) to ferrous iron (Fe²⁺), the form more readily absorbed in the small intestine. Taking vitamin C alongside iron-rich plant foods or iron supplements can meaningfully improve iron absorption. Consult a healthcare practitioner if you have an iron overload disorder before supplementing with vitamin C.

Is ascorbic acid the same as natural vitamin C?

Yes. Ascorbic acid produced by fermentation of glucose is chemically identical to the vitamin C found naturally in fruits and vegetables. The body cannot distinguish between synthetic and natural ascorbic acid they have the same molecular structure, the same biological activity, and the same bioavailability. "Natural" vitamin C from food sources such as acerola cherry contains ascorbic acid alongside bioflavonoids, but the ascorbic acid itself is chemically identical.