Vitamin C Gummies & Tablets | Immune & Antioxidant Guide

Name: Vitamin C (1000 mg, Time Release)
Brand: Nature's Sunshine
SKU: 3240
Price: 35.70 USD
Availability: InStock
Rating: 4.8 (5 reviews)

Explore our deep-dive guide on Vitamin C gummies and time-release tablets. Learn how Vitamin C supports immunity, antioxidant defense, and collagen production.

Overview

Vitamin C Gummies and Time-Release Vitamin C: What You Need to Know

If you've been searching for Vitamin C gummies or other convenient ways to get your daily Vitamin C, you already know this nutrient is essential. Vitamin C (ascorbic acid) is a water-soluble vitamin the human body cannot produce on its own — a genetic quirk that means we must get it from food or supplementation every single day.

Vitamin C is far more than a cold-season staple. It serves as a potent antioxidant, a cofactor for enzymes involved in collagen biosynthesis, and a key player in both innate and adaptive immune function. Research suggests it supports epithelial barrier function against pathogens, promotes oxidant-scavenging activity in the skin, and enhances the differentiation and proliferation of immune cells including B cells and T cells.

While Vitamin C gummies are a popular format, Nature's Sunshine takes a different approach with their Vitamin C (1000 mg, Time Release) tablets. Each tablet features a special coating that slows the absorption of nutrients until they reach the intestines, helping deliver Vitamin C's benefits throughout the day rather than in a single burst. This completely natural product contains no sugar, starch, artificial colorings, or flavorings — and it's both vegan and non-GMO.

Whether you prefer Vitamin C gummies or a time-release tablet, the goal is the same: consistent, daily Vitamin C to support your immune system, fight free radicals, nourish tissues, and assist in collagen production. If you'd like personalized guidance on which format is right for you, our naturopath is available for a free consultation.

How It Works

Why Time-Release Matters for Vitamin C Absorption

Here's something many people searching for Vitamin C gummies may not realize: Vitamin C absorption is saturable and dose-dependent. At lower doses (30–180 mg), roughly 70–90% of Vitamin C is absorbed. But at doses above 1,000 mg taken all at once, absorption can fall to about 50% or less. Much of that excess is simply excreted.

That's the beauty of a time-release formula. Nature's Sunshine Vitamin C Time Release uses a special coating that slows the release of nutrients, allowing more gradual absorption in the intestines rather than delivering the full dose immediately. This approach may help your body use more of each serving over the course of the day.

The Vitamin C in this formula isn't alone, either. It's blended with a base of Rose hips extract, acerola fruit extract, Rutin, Lemon bioflavonoid extract, and Hesperidin bioflavonoid extract — a combination of naturally-occurring plant compounds that complement ascorbic acid's activity. These bioflavonoids have their own documented antioxidant and supportive properties.

What's inside

Key ingredients

Vitamin C (ascorbic acid) — 1000 mg

Vitamin C is a water-soluble essential nutrient and one of the most extensively studied antioxidants in human biology. It directly scavenges reactive oxygen species (ROS) in aqueous cellular compartments and plasma, and research shows it can regenerate the antioxidant form of vitamin E at membrane interfaces. As a cofactor for collagen prolyl hydroxylases, Vitamin C is essential for proper folding and deposition of collagen proteins — the most abundant proteins in the body — supporting skin integrity, wound repair, and connective tissue health. Studies suggest Vitamin C contributes to immune defense by supporting epithelial barrier function against pathogens, enhancing phagocytosis, normalizing cytokine production, and decreasing histamine levels. A 2013 Cochrane review of 29 trials (over 11,000 participants) found that regular supplementation does not prevent colds in the general population but modestly reduces duration (8% in adults, 14% in children) and severity, with more pronounced benefits in people under severe physical stress such as marathon runners. Vitamin C also enhances the absorption of non-heme iron from plant-based foods by reducing ferric iron to its more absorbable ferrous form, and it plays documented roles in the production of adrenal steroids, catecholamines, and neurotransmitter synthesis. Research suggests Vitamin C may support bronchial health, with supplementation at ≥400 mg/day shown to improve FEV1% in patients with COPD in meta-analyses of randomized controlled trials.

Rose hips — 25 mg

Rose hips, the pseudo fruits of Rosa canina, have been used as herbal medicine for more than 2,000 years and are among the richest natural plant sources of Vitamin C (up to 1,300 mg per 100 g depending on the source). Beyond Vitamin C, Rose hips contain polyphenols, carotenoids, tocopherols, and a unique galactolipid called GOPO that has documented anti-inflammatory properties. Rose hip extract ranks among the highest measured antioxidant activities of tested fruits by ORAC, TRAP, and HORAC assays, and clinical studies suggest increased antioxidant status in healthy adults following supplementation. Research supports Rose hips for upper respiratory health: their high Vitamin C content contributes to reducing the severity and duration of upper respiratory infections, with meta-analyses confirming an 8–14% reduction in cold duration. Anti-inflammatory flavonoids, including quercetin found in Rose hips, may soothe airway mucous membranes and exhibit antihistamine-like properties. Rose hips have traditionally been used as a recovery tonic after illness and for fever management in European and indigenous North American herbal practice.

acerola fruit extract — 25 mg

Acerola (listed here as acerola fruit extract from the Cherry family) is a concentrated source of anthocyanins and polyphenolic compounds with documented antioxidant activity. Research suggests these anthocyanins upregulate endogenous antioxidant pathways, including the Nrf2/ARE pathway, and human randomized controlled trials show increased DNA repair enzyme (OGG1) activity and reduced oxidative stress markers such as MDA and oxidized LDL following supplementation. Studies also indicate that Cherry-derived anthocyanins modulate immune-inflammatory signaling by inhibiting COX-1/2 and NF-κB, reducing TNF-α, IL-1β, and IL-6 in human studies, and lowering C-reactive protein (CRP) both after exercise and at rest in older adults.

Rutin — 25 mg

Rutin (quercetin-3-O-rutinoside) is a flavonoid glycoside found in buckwheat, citrus fruits, and many other plants, sometimes referred to historically as vitamin P. It is well-documented as an antioxidant through multiple mechanisms: direct free-radical scavenging, upregulation of endogenous antioxidant enzymes (SOD, CAT, GPx), and activation of the Nrf2/ARE pathway. Preclinical evidence is substantial, consistently showing reductions in oxidative stress biomarkers. Research suggests Rutin modulates multiple arms of immunity, suppressing pro-inflammatory cytokine production from human macrophages, inhibiting mast cell activation relevant to allergic immunity, and exerting NF-κB-dependent immunomodulatory effects documented in human and animal studies. Rutin has also been studied for neuroprotective effects including antioxidant, anti-inflammatory, and anti-amyloid mechanisms relevant to cognitive health in aging, though this evidence remains primarily preclinical.

Hesperidin bioflavonoid extract — 25 mg

Hesperidin is a flavanone glycoside naturally found in citrus fruits, particularly in the peel and white inner layer of oranges and lemons. It is recognized as a potent natural antioxidant that scavenges reactive oxygen species, enhances endogenous antioxidant enzyme activity (SOD, CAT, GSH), and activates the ERK/Nrf2 signaling pathway — effects demonstrated in vitro, in animal studies, and in human trials measuring oxidative stress biomarkers. Research suggests Hesperidin modulates the immune system by downregulating pro-inflammatory cytokines (TNF-α, IL-1β, IL-6) and upregulating anti-inflammatory IL-10, while inhibiting NF-κB. A human RCT showed a Hesperidin-containing supplement improved immune function in adults and enhanced oxidative-inflammatory state. Hesperidin has also been studied for its cardiovascular relevance: meta-analyses of randomized controlled trials report significant reductions in LDL cholesterol, total cholesterol, and triglycerides, though results across all meta-analyses are not fully consistent and further research is needed.

Lemon bioflavonoid extract — 25 mg

Lemon (Citrus × limon) is a well-characterized source of Vitamin C and flavonoids including eriocitrin, Hesperidin, and naringenin. These flavonoids contribute documented antioxidant capacity: a double-blind RCT found that citrus extract combined with Vitamin C significantly increased lipoprotein oxidation lag time, outperforming vitamin E as an antioxidant. Lemon's Vitamin C content supports immune defense against respiratory infections: a Swiss clinical review found that Vitamin C intake improved symptoms and shortened duration of respiratory tract infections including the common cold. Lemon has traditionally been used across cultures for sore throat relief and fever management, attributed to its antimicrobial and immune-supportive Vitamin C properties, though clinical evidence for these specific traditional applications remains limited.

dicalcium phosphate

Dicalcium phosphate is a Calcium compound used here as a tablet base and excipient. Calcium is the most abundant mineral in the human body, with more than 99% stored in bones and teeth as hydroxyapatite. It plays essential roles in muscle contraction, nerve transmission, and hormonal regulation. In this formula, dicalcium phosphate serves primarily as a structural component of the tablet.

Vitamin C (1000 mg, Time Release)

★★★★★ 4.8 (5 reviews)

✓ Free shipping on all orders
✓ 90-day easy returns
✓ Ships within hours

Vitamin C (1000 mg, Time Release)

$47.65

Who Benefits

Who Should Consider Vitamin C Supplementation?

Anyone searching for Vitamin C gummies or other Vitamin C supplements likely falls into one or more of these groups:

People focused on immune support. Vitamin C contributes to immune defense by supporting various cellular functions of both the innate and adaptive immune system. Research suggests regular supplementation modestly reduces cold duration, with more pronounced benefits in people under heavy physical or cold-weather stress.
Those wanting antioxidant protection. As a water-soluble antioxidant, Vitamin C directly scavenges reactive oxygen species and can regenerate other antioxidants like vitamin E. This product's blend of Rose hips, Rutin, Hesperidin, and Lemon bioflavonoids adds additional antioxidant support.
People concerned about collagen and tissue health. Vitamin C is essential for collagen biosynthesis — without adequate Vitamin C, the body cannot properly hydroxylate collagen precursors, leading to structurally defective collagen. This is relevant for skin integrity, wound healing, and connective tissue maintenance.
Individuals with higher Vitamin C needs. Smokers are recommended to increase their Vitamin C consumption by 35 mg per day regardless of sex, and pregnant or lactating women have higher requirements (85 mg and 120 mg per day, respectively).
People who prefer a sugar-free, vegan option. This Nature's Sunshine formula contains no sugar, starch, or artificial ingredients and is both vegan and non-GMO.

Not sure whether a time-release tablet or Vitamin C gummies format suits your needs best? Our naturopath offers free consultations and can help you think through what makes sense for your body and lifestyle.

Directions

How to Take Vitamin C Time Release

Take one tablet daily with a meal.

Each bottle contains 120 tablets, providing a four-month supply at the recommended serving size. The time-release coating is designed to slow absorption until the nutrients reach the intestines, supporting more gradual delivery throughout the day compared to standard-release Vitamin C gummies or regular tablets.

About the author

Written by Greg Howlett

Greg Howlett

Founder

Greg has spent over a decade helping customers choose the right natural-health products. He personally vets every formula we carry and writes these guides to cut through the marketing noise with practical, experience-based advice.

FAQ

Frequently asked questions

How is a time-release Vitamin C tablet different from Vitamin C gummies?

Vitamin C gummies deliver their full dose of Vitamin C immediately upon digestion. This Nature's Sunshine time-release tablet features a special coating that slows absorption until the nutrients reach the intestines, helping deliver Vitamin C's benefits more gradually throughout the day. Additionally, this formula contains no sugar, starch, or artificial colorings or flavorings — ingredients commonly found in gummy formats.

Why are bioflavonoids included with Vitamin C?

This formula blends Vitamin C with a base of Rose hips extract, acerola fruit extract, Rutin, Lemon bioflavonoid extract, and Hesperidin bioflavonoid extract. Each of these plant compounds has its own documented antioxidant properties. For example, research suggests Rose hips rank among the highest measured antioxidant activities of tested fruits, Rutin supports free-radical scavenging and immune modulation, and Hesperidin activates the ERK/Nrf2 antioxidant signaling pathway.

Does Vitamin C actually prevent colds?

A 2013 Cochrane review of 29 trials involving over 11,000 participants found that regular Vitamin C supplementation does not prevent colds in the general population. However, it modestly reduces cold duration (by about 8% in adults and 14% in children) and severity. The benefits appear more pronounced in people under severe physical stress, such as marathon runners or military personnel.

Is 1,000 mg of Vitamin C safe to take daily?

The Tolerable Upper Intake Level (UL) set by the Institute of Medicine for adults is 2,000 mg per day, well above this product's 1,000 mg serving. At suggested doses, Vitamin C supplements are mostly safe. Taking more than 2,000 mg per day may lead to gastrointestinal discomfort such as stomach upset or diarrhea and, although rarely, kidney stones. People with hemochromatosis, G6PD deficiency, or kidney disease should consult a healthcare professional before supplementing with high-dose Vitamin C.

Is this product suitable for vegans?

Yes. Nature's Sunshine Vitamin C Time Release is both vegan and non-GMO, and it contains no sugar, starch, artificial colorings, or flavorings.

Can Vitamin C interact with medications?

Yes. There is concern that Vitamin C and other antioxidants during chemotherapy might affect treatment efficacy. Vitamin C may also interact with statins and niacin, estrogen-containing medications (potentially raising estrogen levels), and protease inhibitors. Because Vitamin C enhances iron absorption, people with hemochromatosis should use caution. If you take any medications, our naturopath is happy to discuss potential interactions during a free consultation.

Talk to an expert

Talk to Dr. Shannyn Fowl

Not sure if this is right for you? Book a free, no-pressure consultation for personalized guidance on your health goals.

Book your free consult →

Who we are

About Caring Sunshine

A family-run reseller of premium supplements — free shipping, a 90-day guarantee, and real people who know the products.

Learn more about us →