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Nature's Plus · Other Combinations supplement

Sustained Release C-Ascorbs

20 ingredients on file in the NIH Dietary Supplement Label Database. Off-market, label data preserved for reference.

20
Ingredients
8
Nutrient categories
Top 16%
By ingredient count

Sustained Release C-Ascorbs is a other combinations supplement by Nature's Plus in tablet or pill form, listing 20 ingredients in the NIH Dietary Supplement Label Database (DSLD), maintained by the Office of Dietary Supplements at the National Institutes of Health. Currently listed as off-market (no longer available for purchase, but label data is preserved). Daily Value percentages shown below are based on FDA reference daily intake amounts for adults.

Product Details

Form
Tablet or Pill
Database Entry Date
2012-10-25
Ingredients
20

Supplement Facts (20 Ingredients)

Ingredient Group Amount % DV
Carbohydrates Carbohydrate Not disclosed on label No DV
Dietary Fiber Fiber (unspecified) Not disclosed on label No DV
Vitamin C Vitamin C Not disclosed on label No DV
Calcium Calcium Not disclosed on label No DV
Magnesium Magnesium Not disclosed on label No DV
Zinc Zinc Not disclosed on label No DV
Manganese Manganese Not disclosed on label No DV
Potassium Potassium Not disclosed on label No DV
Lemon Bioflavonoids Flavonoid (mixture) Not disclosed on label No DV
Active Flavonones Flavanones Not disclosed on label No DV
active Flavonols and Flavones Blend (non-nutrient/non-botanical) Not disclosed on label No DV
Pectin Pectin Not disclosed on label No DV
Cellulose & Naringen Blend (Combination) Not disclosed on label No DV
Microcrystalline Cellulose Cellulose Not disclosed on label No DV
Hydroxypropyl Methylcellulose Hypromellose Not disclosed on label No DV
Stearic Acid Stearic Acid Not disclosed on label No DV
Di-Calcium Phosphate Calcium Not disclosed on label No DV
Magnesium Stearate Magnesium Not disclosed on label No DV
Silica Silicon Not disclosed on label No DV
Pharmaceutical Glaze Coating Not disclosed on label No DV

How does Sustained Release C-Ascorbs compare?

Ingredients listed on each label, against the other combinations category average of 21.8. Data from the NIH DSLD.

Sustained Release C-Ascorbs20
1,000 mg Vitamin C Acai Berry34
Other Combinations average21.8

Sustained Release C-Ascorbs lists 14 ingredients fewer than 1,000 mg Vitamin C Acai Berry. That is 2 below the other combinations average.

What the Label Data Shows

With 20 ingredients on the label, Sustained Release C-Ascorbs is one of the more extensive other combinations supplement formulas from Nature's Plus in the NIH Dietary Supplement Label Database (DSLD), sold in tablet or pill form. These ingredients span 8 nutrient categories, mineral, other, fiber, non-nutrient/non-botanical, and 4 more, reflecting a multi-component formula rather than a single-nutrient product.

Across a broader 20-ingredient formula, 20 of 20 sit outside the FDA's reference-intake system entirely -- common at this scale, since multi-ingredient blends tend to accumulate botanicals, amino acids, and specialty compounds the FDA has never benchmarked. That's expected breadth, not a red flag on its own.

A product's market status is worth checking before relying on this label. This product is currently listed as off-market in the DSLD, with its label first entered into the database on 2012-10-25. Off-market products are no longer being produced or distributed under this label, but the DSLD preserves their historical label data for researchers, consumers checking older bottles, and for tracking how formulations have evolved.

About the DSLD database

The DSLD is a label database, not an FDA approval list, under the 1994 DSHEA framework, dietary supplements do not require pre-market approval, and label information reflects what manufacturers self-declare rather than independent laboratory verification. This page presents factual label data for reference only and is not medical advice; consult a licensed healthcare provider before making decisions about any supplement.

Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD) Supplement label data for Sustained Release C-Ascorbs: ingredients, % Daily Value, market status, brand · 2026 DSLD captures manufacturer-self-declared label information; the NIH does not verify accuracy or evaluate safety/efficacy. Dietary supplements are regulated under DSHEA 1994, no pre-market FDA approval is required.

Ingredient Breakdown by Category

mineral
8
Calcium, Magnesium, Zinc, +5 more
other
3
Microcrystalline Cellulose, Hydroxypropyl Methylcellulose, Pharmaceutical Glaze
fiber
2
Dietary Fiber, Pectin
non-nutrient/non-botanical
2
Lemon Bioflavonoids, Active Flavonones
blend
2
active Flavonols and Flavones, Cellulose & Naringen
sugar
1
Carbohydrates
vitamin
1
Vitamin C
fatty acid
1
Stearic Acid

Daily Value Coverage

0
Above 100% DV
0
Below 100% DV
20
No DV Established

Frequently Asked Questions

What ingredients are in Sustained Release C-Ascorbs?
Sustained Release C-Ascorbs contains 20 ingredients. Ingredients span 8 categories: mineral, other, fiber, non-nutrient/non-botanical, blend, sugar, vitamin, fatty acid.
Who manufactures Sustained Release C-Ascorbs?
Sustained Release C-Ascorbs is was manufactured by Nature's Plus. It is classified as a Other Combinations supplement in tablet or pill form.
Is Sustained Release C-Ascorbs still available for purchase?
According to the NIH DSLD database, Sustained Release C-Ascorbs is listed as off-market and may no longer be available for purchase.
What is the serving size of Sustained Release C-Ascorbs?
The serving size is not specified.
What type of supplement is Sustained Release C-Ascorbs?
Sustained Release C-Ascorbs is classified as a "Other Combinations" supplement in the NIH database. This category includes products primarily composed of other combinations ingredients. The NIH DSLD tracks 9 supplement categories: Vitamin, Mineral, Botanical, Amino Acid & Protein, Non-Nutrient, Fat & Fatty Acid, Multi-Vitamin & Mineral, Botanical with Nutrients, and Other Combinations.
Data Sources & Methodology

Data as of 2025. Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD).

Supplement label data sourced from the Source: NIH Dietary Supplement Label Database (DSLD), maintained by the Office of Dietary Supplements at the National Institutes of Health. The DSLD contains label information from dietary supplement products marketed in the United States.

Daily Value (DV) percentages are based on Source: FDA 21 CFR 101.9 Reference Daily Intake (RDI) values for adults. Products marked "Off Market" may no longer be available for purchase but their label data remains in the database for reference.

Disclaimer, Not Medical Advice

Label data from the Source: NIH Dietary Supplement Label Database (DSLD). This information is for educational and reference purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before starting, stopping, or combining any dietary supplement, especially if you are pregnant, nursing, take prescription medication, or have a medical condition.

Every figure on PlainVitamins is rendered directly from the NIH Dietary Supplement Label Database (DSLD), no number is typed in by an editor. This page draws directly on the NIH DSLD, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.