Super C Buffered Vitamin C Powder
by Rainbow Light · powder · 4 oz.
- Off the market since March 2023 (NIH)
- UPC 0 21888 10331 7
- DSLD label 42657
- Serving 0.5 tsp (1.7 g)
- 66 servings
Super C Buffered Vitamin C Powder by Rainbow Light lists 18 ingredients, 11 with an amount per serving of 0.5 tsp, such as 1,000 mg of vitamin C and 100 mg of calcium; 7 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on February 25, 2015.
What is in Super C Buffered Vitamin C Powder?
Each row as the label prints it, per serving of 0.5 tsp. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Vitamin Cas Calcium AscorbateVitamin C (Form: as Calcium Ascorbate) | 1,000 mg | 1,667% | Higher than 91% of 18,583 products listing vitamin C (median 100 mg). Per day at the most servings: 2,000 mg. |
| Calciumas Calcium AscorbateCalcium (Form: from Calcium Ascorbate) | 100 mg | 10% | 53% of 17,831 products listing calcium give more (median 115 mg). Per day at the most servings: 200 mg. |
| Protective Phyto-Nutrients | 100 mg | ||
| Citrus Bioflavonoid Complex | 50 mg | 46% of 2,343 products listing flavonoid give more (median 50 mg). Per day at the most servings: 100 mg. | |
| Rutin | 12.5 mg | 70% of 1,232 products listing rutin give more (median 25 mg). Per day at the most servings: 25 mg. | |
| Hesperidin | 12.5 mg | 61% of 552 products listing hesperidin give more (median 20 mg). Per day at the most servings: 25 mg. | |
| Cranberry juice concentrate | 25 mg | 87% of 1,064 products listing cranberry give more (median 250 mg). Per day at the most servings: 50 mg. | |
| Grape [skin] 10:1 extractGrape [skin] 10:1 extract PlantPart: skin Note: equivalent to 250 mg of fruit powder | 25 mg | 69% of 1,900 products listing grape give more (median 50 mg). Per day at the most servings: 50 mg. | |
| Polyphenols | 6 mg | 92% of 249 products listing polyphenols give more (median 80 mg). Per day at the most servings: 12 mg. | |
| Red Cabbage extract | 10 mg | 75% of 92 products listing cabbage give more (median 50 mg). Per day at the most servings: 20 mg. | |
| Lemon | 25 mg | 61% of 103 products listing lemon give more (median 60 mg). Per day at the most servings: 50 mg. | |
| Orange | 25 mg | 79% of 117 products listing orange (unspecified) give more (median 100 mg). Per day at the most servings: 50 mg. | |
| 4:1 Antioxidant Fruit Blend4:1 Antioxidant Fruit Blend Note: equivalent to 50 mg of fruit powder | 12.5 mg | ||
| Elderberry | in the blend, no amount given | ||
| Blueberry | in the blend, no amount given | ||
| Grape | in the blend, no amount given | ||
| Rose Hip | in the blend, no amount given | ||
| Acerola | in the blend, no amount given | ||
| Cranberry | in the blend, no amount given | ||
| Bilberry | in the blend, no amount given |
Source: NIH ODS Dietary Supplement Label Database, label 42657 (entered February 25, 2015), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.
Is that a lot?
The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:
- Its 1,000 mg of vitamin C is higher than 91% of the 18,583 vitamin C products that print an amount; 445 list more.
- 87% of the 1,064 products that print an amount of cranberry list more than its 25 mg of cranberry (2 rows of the label added together) (median 250 mg).
- 92% of the 249 products that print an amount of polyphenols list more than its 6 mg of polyphenols (median 80 mg).
The NIH database records 1 to 2 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.
The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.
Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.
Which products have the closest formulas?
The products whose ingredient lists overlap most with Super C Buffered Vitamin C Powder's, rare ingredients counting for more.
- Optimum-C FormulaBluebonnet 8 shared, 45% alike
- True To Nature C 500 mgPlanetary Herbals 10 shared, 41% alike
- Ester-C 1000 mgVitabase 7 shared, 40% alike
- PureWay-C 1000 mg Caps with 100 mg BioflavonoidsNewflower Farmers Markets 7 shared, 40% alike
- C 500 mg with Rose Hips and BioflavonoidsMason Natural 7 shared, 40% alike
- Vitamin C-1000 ComplexNutriONN 8 shared, 40% alike
Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.
What does the label say about taking it?
Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.
- Directions
- SUGGESTED USAGE: 1/2 teaspoon (1.7 g) per day mixed with water or juice, with or between meals. Can be taken 1-2 times per day.
- Warnings
- KEEP OUT OF REACH OF CHILDREN.
- Consult your health care professional prior to use if you are pregnant, nursing, taking any medication or have a medical condition.
- Allergens and what it does not contain
- Contains NO: wheat - gluten - milk - lactose - tree nuts - peanuts - soy - eggs - fish - shellfish.
- Gluten-Free
- Storage
- Store in a cool, dry place with lid tightly closed.
Source: label statements in DSLD label 42657.
What else is on the label?
Other ingredients: natural Grape juice crystals, natural Lemon juice crystals, Citric Acid.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): RAINBOW LIGHT(R).
How many labels does Super C Buffered Vitamin C Powder have?
2 labels are on file under this name since February 25, 2015: other sizes, label designs and reformulations. The current one leads this page.
- Label 42657 (current) Entered February 25, 2015 · off the market March 28, 2023 · 4 oz. · UPC 0 21888 10331 7
- Label 42646 Entered February 25, 2015 · off the market November 10, 2014 · 4 oz. · UPC 0 21888 10331 7
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Rainbow Light Nutritional Systems (manufacturer, distributor), Santa Cruz, CA. All Rainbow Light products.