PlainVitamins

G/C 1000

by Progressive Professional from Progressive Laboratories · capsule · 120 capsules

  • On the market (NIH)
  • UPC 3 51821 07232 6
  • DSLD label 299169
  • Serving 2 capsules
  • 60 servings

G/C 1000 by Progressive Professional from Progressive Laboratories lists 4 ingredients, 4 with an amount per serving of 2 capsules, such as 60 mg of vitamin C, 30 mg of manganese, 1,500 mg of glucosamine hydrochloride and 500 mg of chondroitin sulfate. Its current label entered the NIH Dietary Supplement Label Database on November 22, 2023.

What is in G/C 1000?

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).

G/C 1000: Supplement Facts rows against the market (DSLD label 299169, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Manganese Ascorbate60 mg67%Vitamin C in G/C 1000 against 18,583 products60 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg60 mg

65% of 18,583 products listing vitamin C give more (median 100 mg). Per day at the most servings: 120 mg.

Manganeseas Manganese Ascorbate30 mg1,304%Manganese in G/C 1000 against 7,016 products30 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg30 mg

Higher than over 99% of 7,016 products listing manganese (median 2 mg). Per day at the most servings: 60 mg. 5.5 times the adult UL a day.

Glucosamine Hydrochloride1,500 mgGlucosamine Hydrochloride in G/C 1000 against 628 products1.5 g per serving; the middle half of products list 0.75 g to 1.5 g, the median 1.5 g.1.5 g

5% of 628 products listing glucosamine hydrochloride give more (median 1.5 g). Per day at the most servings: 3 g.

Chondroitin Sulfate500 mgChondroitin Sulfate in G/C 1000 against 950 products500 mg per serving; the middle half of products list 200 mg to 1,200 mg, the median 400 mg.500 mg

Higher than 53% of 950 products listing chondroitin sulfate (median 400 mg). Per day at the most servings: 1,000 mg.

Source: NIH ODS Dietary Supplement Label Database, label 299169 (entered November 22, 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:

  • At 2 servings a day, the most its directions give, the label lists 60 mg of manganese, 5.5 times the adult Tolerable Upper Intake Level.

The NIH database records 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 G/C 1000'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
Directions: Two capsules twice daily, or more, preferably with meals, as recommended by a health care professional.
Warnings
Sold only for dispensing by a licensed health care professional.
Not to be used by pregnant or lactating women.
Tamper evident band around cap and seal on bottle. Do not use if either seal is broken or missing.
Keep out of reach of children.

Source: label statements in DSLD label 299169.

What else is on the label?

Other ingredients: Gelatin, Vegetable Lubricant.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GMP Certified GMP Compliant Good Manufacturing Practices 21 CFR 111.

How many labels does G/C 1000 have?

2 labels are on file under this name since February 23, 2022: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 299169 (current) Entered November 22, 2023 · on the market · 120 capsules · UPC 3 51821 07232 6
  2. Label 261684 Entered February 23, 2022 · on the market · 240 capsules · UPC 3 51821 07232 6

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. (manufacturer), Irving, Texas. All Progressive Professional from Progressive Laboratories products.

Where next?