Liposomal Vitamin C | Time Release Immune Support

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

Learn how liposomal Vitamin C and time-release formulas support immune health, antioxidant defense, and collagen production. Explore ingredients and benefits.

Overview

Liposomal Vitamin C: What It Is and Why Delivery Matters

When people search for liposomal Vitamin C, they're really asking a bigger question: how can I get more Vitamin C into my body where it actually counts? The core challenge is absorption. Vitamin C (ascorbic acid) is water-soluble, and at higher doses the body's saturable, sodium-dependent transport system becomes a bottleneck — research shows that absorption falls to roughly 50% or less at doses above 1 g/day.

Nature's Sunshine Vitamin C Time Release tackles this challenge with a special coating that slows nutrient absorption until the tablet reaches the intestines, delivering a steady supply of Vitamin C throughout the day rather than one large bolus. The result is a sustained-release strategy that aligns with how the body actually handles ascorbic acid — keeping plasma levels topped up over hours instead of peaking and dropping rapidly.

Each tablet provides 1,000 mg of Vitamin C blended with a base of Rose hips extract, acerola extract, Rutin, Lemon bioflavonoids, and Hesperidin complex — a whole-food-inspired formula with no sugar, starch, artificial colorings, or flavorings. It is vegan and non-GMO.

How It Works

Time-Release Technology and Bioflavonoid Synergy

Vitamin C is a potent antioxidant and a cofactor for many enzymes involved in collagen biosynthesis, carnitine and catecholamine metabolism, dietary iron absorption, and immune cell function. Because the body cannot synthesize its own Vitamin C — due to a mutation in the L-gulonolactone oxidase gene — we depend entirely on dietary and supplemental sources.

This formula pairs ascorbic acid with a suite of naturally occurring bioflavonoids: Rose hips, acerola fruit extract, Rutin, Lemon bioflavonoids, and Hesperidin. These plant compounds bring their own antioxidant and anti-inflammatory profiles to the table, and historically they have been consumed alongside Vitamin C in whole fruits and traditional preparations for centuries.

The time-release coating is key. Rather than flooding the intestines with a single high dose — where much of it could pass through unabsorbed — the tablet gradually dissolves, giving the body's active transport mechanisms time to work efficiently. This sustained delivery approach supports the immune system, fights free radicals, nourishes tissues, and assists in collagen production throughout the day.

What's inside

Key ingredients

Vitamin C (ascorbic acid) — 1,000 mg

Vitamin C is a water-soluble nutrient that the body cannot produce on its own. It functions as one of the most important antioxidants in aqueous cellular compartments, directly scavenging reactive oxygen species and regenerating the antioxidant form of vitamin E at membrane interfaces. Research demonstrates that supplementation raises antioxidant capacity and reduces biomarkers of oxidative damage. Vitamin C is an essential cofactor for collagen prolyl hydroxylases — without adequate levels, collagen precursors cannot be properly hydroxylated, which is the biochemical basis of connective-tissue breakdown in scurvy. It also enhances non-heme iron absorption by reducing ferric iron to its more absorbable ferrous form. For immune health, studies show that Vitamin C accumulates in leukocytes, supports phagocytosis and chemotaxis, enhances the differentiation and proliferation of B cells and T cells, normalizes cytokine production, and decreases histamine levels. A Cochrane review of 29 trials involving over 11,000 participants found that regular Vitamin C supplementation modestly reduces cold duration (8% in adults, 14% in children) and severity, with stronger effects in populations under heavy physical stress such as marathon runners.

Rose hips — 25 mg

Rose hips (Rosa canina) are among the richest natural plant sources of Vitamin C, with concentrations reported up to 1,300 mg per 100 g. Beyond ascorbic acid, they contain polyphenols, carotenoids (including lycopene and beta-carotene), tocopherols, and flavonoids that collectively rank rose hip extract among the highest measured antioxidant activities of tested fruits. Clinical studies confirm increased antioxidant status in healthy adults following supplementation. Rose hips have been used traditionally for more than 2,000 years — ancient Chinese, Greek, Roman, and Persian healers employed them medicinally, and during World War II a generation of British children received daily rose hip syrup to compensate for citrus shortages. Their Vitamin C content supports immune defense, and meta-analyses of Vitamin C supplementation show an 8–14% reduction in cold duration in adults, directly applicable to rose hip's principal bioactive constituent.

acerola fruit extract — 25 mg

Acerola (listed here as acerola fruit extract from the Cherry family) is a concentrated source of anthocyanins that upregulate endogenous antioxidant pathways, including the Nrf2/ARE signaling cascade. Human randomized controlled trials show increased DNA repair enzyme (OGG1) activity and reduced oxidative stress markers such as MDA and oxidized LDL following supplementation. Its anthocyanins also modulate immune-inflammatory signaling by inhibiting COX-1/2 and NF-κB, reducing TNF-α, IL-1β, and IL-6 in human studies. Clinical trials demonstrate reduced C-reactive protein after exercise and at rest in older adults, reflecting broad immune system modulation.

Rutin — 25 mg

Rutin (quercetin-3-O-rutinoside), sometimes called vitamin P, is a flavonoid glycoside found in buckwheat, citrus fruits, and many other plants. It is documented as an antioxidant through multiple mechanisms: direct free-radical scavenging, upregulation of endogenous antioxidant enzymes (SOD, catalase, glutathione peroxidase), and activation of the Nrf2/ARE pathway. Preclinical evidence consistently shows reductions in oxidative stress biomarkers. A randomized controlled trial in healthy humans confirmed that Rutin supplementation significantly elevated plasma flavonoid levels. Rutin also modulates multiple arms of immunity — it suppresses pro-inflammatory cytokine production from human macrophages, inhibits mast cell activation relevant to allergic immunity, modulates Th1/Th2 balance, and exerts NF-κB-dependent immunomodulatory effects documented in human and animal studies. Traditionally, Rutin-rich preparations have been used in European herbal medicine for vascular support since at least the mid-20th century.

Hesperidin bioflavonoid extract — 25 mg

Hesperidin is a flavanone glycoside that is the predominant flavonoid in citrus fruits, first isolated from citrus peels in 1828. It is recognized as a potent natural antioxidant that scavenges reactive oxygen species, enhances endogenous antioxidant enzyme activity (SOD, catalase, glutathione), and activates the ERK/Nrf2 signaling pathway — effects demonstrated in vitro, in animal studies, and in human RCTs measuring oxidative stress biomarkers. Hesperidin also 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. Traditionally, citrus peels rich in Hesperidin have been used in Chinese medicine for centuries to improve digestion and relieve phlegm, and in European folk medicine for circulation and colds.

Lemon bioflavonoid extract — 25 mg

Lemon (Citrus × limon) bioflavonoids — including Hesperidin, eriocitrin, and diosmin — are well-characterized antioxidant compounds. In a double-blind RCT, citrus extract combined with Vitamin C significantly increased lipoprotein oxidation lag time, outperforming vitamin E as an antioxidant. Lemon is also a recognized dietary source of Vitamin C, supporting multiple immune functions including natural killer cell activity, lymphocyte proliferation, and neutrophil function. A clinical review found that Vitamin C intake improved symptoms and shortened duration of respiratory tract infections. Traditionally, Lemon has been valued since at least the 1600s, when English ships were required by law to carry Lemon or lime juice to prevent scurvy among sailors.

dicalcium phosphate

Dicalcium phosphate serves as a tableting base and source of Calcium and phosphorus. Calcium is the most abundant mineral in the human body, with more than 99% stored in bone as hydroxyapatite. It plays well-established roles in skeletal integrity, muscle contraction, nerve transmission, and cellular signaling. The Institute of Medicine recognizes Calcium's key role in skeletal health, and it serves here primarily as a structural component of the tablet formulation.

Vitamin C (1000 mg, Time Release)

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Vitamin C (1000 mg, Time Release)

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Who Benefits

Who Should Consider Liposomal Vitamin C and Time-Release Formulas

This formula is designed for adults who want consistent, all-day immune and antioxidant support — not just a short-lived spike. It may be especially relevant for:

People focused on immune resilience — Vitamin C contributes to immune defense by supporting epithelial barrier function, enhancing phagocytosis, and promoting the oxidant-scavenging activity of the skin. Research suggests that regular supplementation modestly reduces cold duration and severity.
Anyone concerned about oxidative stress — Vitamin C is a potent water-soluble antioxidant that quenches reactive oxygen species and regenerates vitamin E. The bioflavonoid blend amplifies this antioxidant network.
Those supporting collagen production — Vitamin C is essential for proper folding and deposition of collagen proteins, which are the most abundant proteins in the human body and have a strong impact on skin, bone, cartilage, and wound repair.
Adults who prefer plant-based supplements — This formula is vegan and non-GMO, with no sugar, starch, or artificial additives.

If you're unsure whether a time-release Vitamin C formula is right for your individual needs, our naturopath is available for a free consultation — no purchase required.

Directions

How to Take This Vitamin C Formula

Take one tablet daily with a meal. The time-release coating is designed to slow absorption until the nutrients reach the intestines, supporting steady delivery throughout the day.

Each bottle contains 120 tablets — a four-month supply at the recommended serving of one tablet per day.

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

What is the difference between liposomal Vitamin C and time-release Vitamin C?

Both liposomal and time-release formats aim to solve the same fundamental problem: Vitamin C absorption drops significantly at higher doses. Liposomal formulas encapsulate Vitamin C in lipid layers, while this time-release tablet uses a special coating that slows absorption until the nutrients reach the intestines. The goal in both cases is to deliver Vitamin C more efficiently than a standard immediate-release tablet. This particular formula also includes a bioflavonoid base of Rose hips extract, acerola extract, Rutin, Lemon bioflavonoids, and Hesperidin complex.

Does Vitamin C actually help with colds?

A Cochrane review of 29 trials involving over 11,000 participants found that regular Vitamin C supplementation does not prevent colds in the general population, but it modestly reduces cold duration (by about 8% in adults and 14% in children) and severity. The benefit appears stronger in people under heavy physical stress, such as marathon runners or military personnel. Taking Vitamin C after a cold has already started does not appear to be helpful.

Why are bioflavonoids included with the Vitamin C?

This formula is blended with Rose hips extract, acerola extract, Rutin, Lemon bioflavonoids, and Hesperidin complex. These plant-derived flavonoids bring their own documented antioxidant and immune-modulating properties. For example, Rutin is a potent free-radical scavenger that upregulates endogenous antioxidant enzymes, and Hesperidin has been shown in human RCTs to reduce inflammatory markers like TNF-α and support immune function. Historically, Vitamin C was consumed alongside these bioflavonoids in whole citrus fruits and medicinal plants.

Is this formula vegan and free from artificial additives?

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

How much Vitamin C is too much?

The Institute of Medicine has set a Tolerable Upper Intake Level (UL) for adults at 2,000 mg per day to prevent gastrointestinal discomfort, which is the most consistently reported side effect of high-dose Vitamin C. Very high doses may also increase the risk of kidney stones in predisposed individuals. This tablet provides 1,000 mg per serving — well within the UL. If you have kidney disease, hemochromatosis, or G6PD deficiency, or are taking medications like warfarin or chemotherapy agents, consult a healthcare professional before supplementing.

Can I talk to someone about whether this supplement is right for me?

Absolutely. We offer free naturopathic consultations — no membership, no purchase required. Our naturopath can help you evaluate whether a time-release Vitamin C formula fits your individual health goals and current supplements or medications.

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