PlainVitamins

Pro-C

by Health Products Distributors · capsule · 180 capsules

  • On the market (NIH)
  • UPC 8 52347 00602 9
  • DSLD label 254853
  • Serving 1 capsule
  • 180 servings

Pro-C by Health Products Distributors lists 12 ingredients, 12 with an amount per serving of 1 capsule, such as 500 mg of vitamin C, 1 mg of riboflavin, 1 mg of vitamin B6 and 23 mg of calcium. Its current label entered the NIH Dietary Supplement Label Database on September 24, 2021.

What is in Pro-C?

Each row as the label prints it, per serving of 1 capsule. 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).

Pro-C: Supplement Facts rows against the market (DSLD label 254853, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Calcium Ascorbate, Magnesium Ascorbate500 mg555%Vitamin C in Pro-C against 18,583 products500 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg500 mg

Higher than 81% of 18,583 products listing vitamin C (median 100 mg).

Riboflavinas Riboflavin 5-Phosphate1 mg77%Riboflavin in Pro-C against 9,824 products1 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg1 mg

84% of 9,824 products listing riboflavin give more (median 4 mg).

Vitamin B6as Pyridoxal 5-PhosphateVitamin B6 (Form: from Pyridoxal 5' Phosphate)1 mg59%Vitamin B6 in Pro-C against 15,277 products1 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg1 mg

88% of 15,277 products listing vitamin B6 give more (median 6 mg).

Calciumas Calcium AscorbateCalcium (Form: from Calcium Ascorbate)23 mg2%Calcium in Pro-C against 17,831 products23 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg23 mg

90% of 17,831 products listing calcium give more (median 115 mg).

Magnesiumas Magnesium AscorbateMagnesium (Form: from Magnesium Ascorbate)23 mg5%Magnesium in Pro-C against 14,003 products23 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg23 mg

82% of 14,003 products listing magnesium give more (median 86 mg).

Zincas Zinc CitrateZinc (Form: from Zinc Ascorbate) Zinc (Form: from Zinc Citrate)2 mg18%Zinc in Pro-C against 13,186 products2 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg2 mg

90% of 13,186 products listing zinc give more (median 11 mg).

Seleniumas L-SelenomethionineSelenium (Form: from L-Selenomethionine)10 mcg18%Selenium in Pro-C against 7,658 products10 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg10 mcg

94% of 7,658 products listing selenium give more (median 55 mcg).

VinCare Grape extract30 mgGrape in Pro-C against 1,900 products30 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.30 mg

65% of 1,900 products listing grape give more (median 50 mg).

Green Tea leaf extractas EGCG30 mgGreen Tea in Pro-C against 2,595 products30 mg per serving; the middle half of products list 50 mg to 250 mg, the median 100 mg.30 mg

84% of 2,595 products listing green tea give more (median 100 mg).

L-GlutathioneL-Glutathione Note: reduced20 mgGlutathione in Pro-C against 717 products20 mg per serving; the middle half of products list 10 mg to 200 mg, the median 50 mg.20 mg

67% of 717 products listing glutathione give more (median 50 mg).

N-Acetyl-L-Cysteine15 mgN-Acetyl Cysteine in Pro-C against 1,259 products15 mg per serving; the middle half of products list 55 mg to 500 mg, the median 150 mg.15 mg

94% of 1,259 products listing N-acetyl cysteine give more (median 150 mg).

Alpha Lipoic Acid5 mgAlpha Lipoic Acid in Pro-C against 2,407 products5 mg per serving; the middle half of products list 25 mg to 150 mg, the median 50 mg.5 mg

92% of 2,407 products listing alpha lipoic acid give more (median 50 mg).

Source: NIH ODS Dietary Supplement Label Database, label 254853 (entered September 24, 2021), 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:

  • 88% of the 15,277 products that print an amount of vitamin B6 list more than its 1 mg of vitamin B6 (median 6 mg).
  • 90% of the 17,831 products that print an amount of calcium list more than its 23 mg of calcium (median 115 mg).
  • 90% of the 13,186 products that print an amount of zinc list more than its 2 mg of zinc (median 11 mg).
  • 94% of the 7,658 products that print an amount of selenium list more than its 10 mcg of selenium (median 55 mcg).
  • 94% of the 1,259 products that print an amount of N-acetyl cysteine list more than its 15 mg of N-acetyl-L-cysteine (filed by NIH under N-acetyl cysteine) (median 150 mg).
  • 92% of the 2,407 products that print an amount of alpha lipoic acid list more than its 5 mg of alpha lipoic acid (median 50 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?

The products whose ingredient lists overlap most with Pro-C's, rare ingredients counting for more.

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 Use: As a dietary supplement take one capsule daily, or as directed by a health care professional.
Warnings
Keep out of reach of children
Allergens and what it does not contain
Does Not Contain: Wheat, rye, oats, barley, gluten, soy, egg, dairy, yeast, sugar, wax, preservatives, colorings, or artificial flavorings.
Storage
Store in a cool, dry place

Source: label statements in DSLD label 254853.

What else is on the label?

Other ingredients: Hypromellose, Microcrystalline Cellulose, Magnesium Silicate, Silicon Dioxide.

How many labels does Pro-C have?

4 labels are on file under this name since June 24, 2020: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 254853 (current) Entered September 24, 2021 · on the market · 180 capsules · UPC 8 52347 00602 9
  2. Label 254849 Entered September 24, 2021 · on the market · 90 capsules · UPC 8 52347 00603 6
  3. Label 228293 Entered June 24, 2020 · off the market June 9, 2021 · 180 capsules · UPC 8 52347 00602 9
  4. Label 228291 Entered June 24, 2020 · off the market June 9, 2021 · 90 capsules · UPC 8 52347 00603 6

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Health Products Distributors, Inc. (distributor), Oracle, AZ. All Health Products Distributors products.

Where next?