Potent C Guard
by Perque · powder · 16 ounces
- On the market (NIH)
- DSLD label 240951
- Serving 1 level half-teaspoon
- 224 servings
Potent C Guard by Perque lists 5 ingredients, 5 with an amount per serving of 1 level half-teaspoon, such as 1,584 mg of vitamin C, 99 mg of potassium, 40 mg of calcium and 16 mg of magnesium. Its current label entered the NIH Dietary Supplement Label Database on January 22, 2021.
What is in Potent C Guard?
Each row as the label prints it, per serving of 1 level half-teaspoon. 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 L-AscorbateVitamin C (Form: as 100% l-ascorbates Note: fully reduced and buffered) | 1,584 mg | 2,640% | Higher than over 99% of 18,583 products listing vitamin C (median 100 mg). |
| Potassiumas Potassium AscorbatePotassium (Form: as Potassium Ascorbate) | 99 mg | 3% | 49% of 11,614 products listing potassium give more (median 99 mg). |
| Calciumas Calcium AscorbateCalcium (Form: as Calcium Ascorbate) | 40 mg | 5% | 79% of 17,831 products listing calcium give more (median 115 mg). |
| Magnesiumas Magnesium AscorbateMagnesium (Form: as Magnesium Ascorbate) | 16 mg | 4% | 87% of 14,003 products listing magnesium give more (median 86 mg). |
| Zincas Zinc AscorbateZinc (Form: as Zinc Ascorbate) | 600 mcg | 4% | 98% of 13,186 products listing zinc give more (median 11 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 240951 (entered January 22, 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:
- Its 1,584 mg of vitamin C is higher than over 99% of the 18,583 vitamin C products that print an amount; 173 list more.
- 98% of the 13,186 products that print an amount of zinc list more than its 0.6 mg of zinc (median 11 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?
6 products list the very same ingredients; the nearest amounts come first.
- Potent C Guard Buffered Ascorbate PowderPerque same ingredients
- Vitamin C Buffered PowderBeyond Health same ingredients
- Buffered Vitamin CNutriBiotic Immunity same ingredients
- Hypo-Aller CNutriBiotic Immunity same ingredients
- Buffered Vitamin C PowderLife Extension same ingredients
- CalscorbplexDouglas Laboratories · off the market same ingredients
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: Take one (1) level half-teaspoon mixed with two (2) to four (4) ounces of liquid or as directed by your health professional. Use only dry transfer spoons to remove powder from bottle.
- Please take a few deep, relaxing breaths while the natural effervescence subsides (~1 min).
- Warnings
- Keep out of reach of children.
- Do not use product if the tamper-resistant shrink band around the cap or the inner seal beneath the cap appears to have been tampered with or is missing.
- Warning: Pregnant and nursing mothers need to check with their health professional before taking supplements.
- Allergens and what it does not contain
- Does not contain: Citrus, MSG, wheat, gluten, corn, starch, sugar, soy, yeast, zein, sulfates, phosphates (other than coenzymes), preservatives, casein or other milk derivatives. No GMO's; No toxic minerals or metals
- Full disclosure label (no hidden or inactive ingredients)
- Storage
- Must be stored with cap on tightly in a cool, dry place.
- Keep tightly capped and moisture free.
- May be kept on the counter, in refrigerator or freezer to maintain dryness.
Source: label statements in DSLD label 240951.
How many labels does Potent C Guard have?
5 labels are on file under this name since March 25, 2013: other sizes, label designs and reformulations. The current one leads this page.
- Label 240951 (current) Entered January 22, 2021 · on the market · 16 ounces
- Label 240950 Entered December 26, 2020 · on the market · 8 ounces
- Label 206266 Entered September 24, 2019 · on the market · N/A
- Label 71114 Entered February 24, 2017 · off the market February 7, 2017 · 16 oz. · UPC 7 91760 02530 2
- Label 18821 Entered March 25, 2013 · off the market October 28, 2020 · 100 tabsules
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Perque Integrative Health (manufacturer, distributor), Ashburn, VA. All Perque products.