O.p.a.
by PL Progressive Laboratories · liquid · 2 fl. Oz.
- Off the market since December 2022 (NIH)
- UPC 3 51821 00414 3
- DSLD label 71378
- Serving 4 ml
- 15 servings
O.p.a. by PL Progressive Laboratories lists 4 ingredients, 4 with an amount per serving of 4 ml, such as 100 mcg of riboflavin, 125 mg of phosphorus and 21 mg of inositol. Its current label entered the NIH Dietary Supplement Label Database on March 24, 2017.
What is in O.p.a.?
Each row as the label prints it, per serving of 4 ml. 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 |
|---|---|---|---|
| Riboflavin | 100 mcg | 6% | 99% of 9,824 products listing riboflavin give more (median 4 mg). |
| Phosphorus | 125 mg | 13% | Higher than 64% of 3,786 products listing phosphorus (median 90 mg). |
| Orthophosphoric Acid | 395 mg | ||
| Inositol | 21 mg | 64% of 4,042 products listing inositol give more (median 30 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 71378 (entered March 24, 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:
- 99% of the 9,824 products that print an amount of riboflavin list more than its 0.1 mg of riboflavin (median 4 mg).
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?
1 product lists the very same ingredients; the nearest amounts come first.
- O.p.a.Progressive Professional from Progressive Laboratories same ingredients
- Phos-DropsNutri-West 2 shared, 54% alike
- Inocell IP-6 Plus AHCCBluebonnet 2 shared, 51% alike
- Super Phosphozyme LiquidBiotics Research Corporation 1 shared, 37% alike
- Ultimate Phosphorus ConcentrateComplete H2O Minerals 1 shared, 37% alike
- Ionic Phosphorus 25,000 PPMGood State · off the market 1 shared, 37% 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: Two full droppers diluted with water daily, or more, as directed by a health care professional.
- Warnings
- Do not use if either seal is broken or missing.
- Keep out of reach of children.
Source: label statements in DSLD label 71378.
What else is on the label?
Other ingredients: purified Water.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GMP 3rd party confirmed compliant.
How many labels does O.p.a. have?
One label is on file, entered on March 24, 2017.
- Label 71378 (current) Entered March 24, 2017 · off the market December 13, 2022 · 2 fl. Oz. · UPC 3 51821 00414 3
DSLD also links this label to: O.p.a. (image difference, same product).
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Progressive Laboratories, Inc. (distributor), Irving, Texas. All PL Progressive Laboratories products.