Home Ingredients C-Fence® (Sustained-Release Vitamin C — Nutriventia)
Immune SupportAntioxidant

C-Fence® (Sustained-Release Vitamin C — Nutriventia)

Evidence Level
Strong
1 Clinical Trial
3 Documented Benefits
4/5 Evidence Score

C-Fence® is a sustained-release vitamin C from Nutriventia, engineered to release gradually over about 12 hours for a 24-hour presence in the blood from a single daily dose. The slow release is designed to improve uptake and reduce the digestive upset of high-dose plain vitamin C.

Studied Dose Commonly providing a standard daily vitamin C dose in one sustained-release serving.
Active Compound Sustained-release (gastro-retentive) vitamin C (ascorbic acid) granules.

Benefits

Immune support

Vitamin C supports normal immune function and is studied for modestly reducing the duration of the common cold.

Supported by Trial 1

Antioxidant protection

Vitamin C is a key water-soluble antioxidant that protects cells from oxidative stress and regenerates other antioxidants.

Supported by Trial 1

Better tolerance and steadier levels

C-Fence's sustained release is designed to maintain vitamin C levels through the day and reduce the digestive upset of high-dose plain vitamin C.

Supported by Trial 1

Mechanism of action

1

Sustained absorption

Gradual release keeps blood vitamin C steadier and reduces the spillover and gut irritation seen with large immediate-release doses.

2

Antioxidant and immune roles

Vitamin C donates electrons to neutralize free radicals and supports the function of immune cells and collagen formation.

Clinical trials

1
Vitamin C and the Common Cold — Cochrane Review
PubMed

Cochrane systematic review of vitamin C for preventing and treating the common cold. (Hemila and Chalker 2013, Cochrane Database of Systematic Reviews)

Adults and children across many trials.

Regular vitamin C modestly reduced the duration and severity of common colds; C-Fence is a sustained-release vitamin C.

Side effects and drug interactions

Common Potential side effects

GENERALLY WELL-TOLERATED.
Very high doses can cause digestive upset or loose stools.
People prone to kidney stones should not take high doses long-term.

Important Drug interactions

Generally compatible with medications.
High-dose vitamin C can affect some lab tests; tell your doctor.
Ask your doctor if you have kidney disease or take chemotherapy.

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Frequently asked questions about C-Fence® (Sustained-Release Vitamin C — Nutriventia)

What is C-Fence® (Sustained-Release Vitamin C — Nutriventia)?

C-Fence® is a sustained-release vitamin C from Nutriventia, engineered to release gradually over about 12 hours for a 24-hour presence in the blood from a single daily dose. The slow release is designed to improve uptake and reduce the digestive upset of high-dose plain vitamin C.

What is the recommended dosage of C-Fence® (Sustained-Release Vitamin C — Nutriventia)?

The clinically studied dose for C-Fence® (Sustained-Release Vitamin C — Nutriventia) is Commonly providing a standard daily vitamin C dose in one sustained-release serving.. Always follow product labeling and consult a healthcare provider for personalized dosing recommendations.

What is C-Fence® (Sustained-Release Vitamin C — Nutriventia) used for?

C-Fence® (Sustained-Release Vitamin C — Nutriventia) is studied for immune support, antioxidant protection, better tolerance and steadier levels. Vitamin C supports normal immune function and is studied for modestly reducing the duration of the common cold.

Are there side effects from taking C-Fence® (Sustained-Release Vitamin C — Nutriventia)?

Reported potential side effects may include: GENERALLY WELL-TOLERATED. Very high doses can cause digestive upset or loose stools. Always consult a healthcare provider before starting any new supplement, especially if you have underlying conditions or take medications.

Is C-Fence® (Sustained-Release Vitamin C — Nutriventia) safe to take?

Whether C-Fence® (Sustained-Release Vitamin C — Nutriventia) is safe depends on the dose, your overall health, and any medications you take. At studied doses, reported side effects can include: GENERALLY WELL-TOLERATED. It may also interact with certain medications. C-Fence® (Sustained-Release Vitamin C — Nutriventia) is not suitable for everyone — consult a healthcare provider before use if you are pregnant or breastfeeding, have a medical condition, or take prescription medications.

References(1 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Hemila H, Chalker E. Vitamin C for preventing and treating the common cold. Cochrane Database Syst Rev. 2013;2013(1):CD000980..PubMedUsed to support: Cochrane review supporting vitamin C for the common cold (C-Fence is a sustained-release vitamin C).