Optimum-C Formula
by Bluebonnet · capsule · 180 vegetable capsules
- On the market (NIH)
- UPC 7 43715 00533 4
- DSLD label 279643
- Serving 2 capsules
- 90 servings
Optimum-C Formula by Bluebonnet lists 8 ingredients, 8 with an amount per serving of 2 capsules, such as 1,000 mg of vitamin C, 94 mg of calcium, 500 mg of citrus bioflavonoid complex and 100 mg of grape seed extract. Its current label entered the NIH Dietary Supplement Label Database on January 23, 2023.
What is in Optimum-C Formula?
Each row as the label prints it, per serving of 2 capsules. 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 Ascorbate | 1,000 mg | 1,111% | Higher than 91% of 18,583 products listing vitamin C (median 100 mg). |
| Calciumas Calcium Ascorbate | 94 mg | 7% | 59% of 17,831 products listing calcium give more (median 115 mg). |
| Citrus Bioflavonoid Complex | 500 mg | Higher than 94% of 2,343 products listing flavonoid (median 50 mg). | |
| Hesperidin | 200 mg | Higher than 91% of 552 products listing hesperidin (median 20 mg). | |
| Grape Seed Extractas Total Polyphenols95% Total Polyphenols | 100 mg | Higher than 58% of 1,900 products listing grape (median 50 mg). | |
| Rutin | 50 mg | Higher than 69% of 1,232 products listing rutin (median 25 mg). | |
| Acerola | 10 mg | 76% of 436 products listing acerola give more (median 60 mg). | |
| Rose Hips | 10 mg | 78% of 195 products listing rose (unspecified) give more (median 30 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 279643 (entered January 23, 2023), version 9.4.0. See the label on DSLD or its label image (PDF). 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.
- Its 500 mg of citrus bioflavonoid complex (filed by NIH under flavonoid) is higher than 94% of the 2,343 flavonoid products that print an amount; 65 list more.
- Its 200 mg of hesperidin is higher than 91% of the 552 hesperidin products that print an amount; 36 list more.
The NIH database records one serving 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 Optimum-C Formula's, rare ingredients counting for more.
- Ester-C 1000 mgVitabase 7 shared, 89% alike
- PureWay-C 1000 mg Caps with 100 mg BioflavonoidsNewflower Farmers Markets 7 shared, 89% alike
- C 500 mg with Rose Hips and BioflavonoidsMason Natural 7 shared, 89% alike
- C 1000 mg + Rose Hips & BioflavonoidsMason Natural 6 shared, 83% alike
- Natural C Plus 500Douglas Laboratories · off the market 6 shared, 73% alike
- Buffered C-Complex PowderThe Vitamin Shoppe 6 shared, 72% 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
- Directions: As a dietary supplement, take two capsules once daily or as directed by a healthcare practitioner.
- Warnings
- Caution: For adults only.
- Consult physician if pregnant/nursing, taking medication, or have a medical condition.
- Keep out of reach of children.
- Allergens and what it does not contain
- Free of milk, egg, fish, crustacean shellfish, tree nuts, peanuts, wheat, soybeans and sesame. Also free of gluten, barley, rice, sodium and sugar.
- Made with non GMO ingredients
- Gluten free
Source: label statements in DSLD label 279643.
What else is on the label?
Other ingredients: Hypromellose, Water, Purified, Magnesium Stearate.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): K Parve (Kosher).
How many labels does Optimum-C Formula have?
4 labels are on file under this name since June 25, 2018: other sizes, label designs and reformulations. The current one leads this page.
- Label 279643 (current) Entered January 23, 2023 · on the market · 180 vegetable capsules · UPC 7 43715 00533 4
- Label 279642 Entered January 23, 2023 · on the market · 90 vegetable capsules · UPC 7 43715 00532 7
- Label 178089 Entered June 25, 2018 · on the market · 180 vegetable capsules · UPC 7 43715 00533 4
- Label 178084 Entered June 25, 2018 · on the market · 90 vegetable capsules · UPC 7 43715 00532 7
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Bluebonnet Nutrition Corporation (manufacturer), Sugar Land, Texas. All Bluebonnet products.