Opc
by HBC Protocols · capsule · 180 capsules
- On the market (NIH)
- DSLD label 74944
- Serving 1 to 2 capsules; amounts per 2 capsules
Opc by HBC Protocols lists one ingredient: 200 mg of oligomeric proanthocyanidins per serving of 2 capsules. Its current label entered the NIH Dietary Supplement Label Database on June 23, 2017.
What is in Opc?
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 |
|---|---|---|---|
| Oligomeric Proanthocyanidinsas Grape, Pine barkOligomeric Proanthocyanidins (Form: from Grape PlantPart: seeds Genus: Vitis Species: vinifera, and Pine bark PlantPart: bark Genus: Pinus Species: pinaster, maritima) | 200 mg | Higher than 93% of 164 products listing proanthocyanidins (median 36 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 74944 (entered June 23, 2017), 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 200 mg of oligomeric proanthocyanidins (filed by NIH under proanthocyanidins) is higher than 93% of the 164 proanthocyanidins products that print an amount; 7 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?
4 products list the very same ingredients; the nearest amounts come first.
- Grape Seed Extra 100 mgHighland Laboratories same ingredients
- Pro-AnthocyanidinsDouglas Laboratories · off the market same ingredients
- Pro-Anthocyanidins (Red Wine Grapes)Douglas Laboratories same ingredients
- Cranberry Plus CapsulesGoodbye UTI same ingredients
- Ultra-C ForteDouglas Laboratories 1 shared, 78% alike
- Grape Seed Extra StrengthOL Olympian Labs · off the market 1 shared, 66% 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 For Use: As a food supplement, take 1 or 2 capsules with water daily, on an empty stomach, or as directed by a health professional.
Source: label statements in DSLD label 74944.
What else is on the label?
Other ingredients: Brown Rice Flour.
How many labels does Opc have?
One label is on file, entered on June 23, 2017.
- Label 74944 (current) Entered June 23, 2017 · on the market · 180 capsules
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names HBC Protocols, Inc. (manufacturer), Los Angeles, California. All HBC Protocols products.