Buffered Vitamin C Powder
by Life Extension · powder · 454 grams
- On the market (NIH)
- UPC 7 37870 08445 7
- DSLD label 231632
- Serving 5.4 g (1 Rounded Teaspoon)
- 84 servings
Buffered Vitamin C Powder by Life Extension lists 5 ingredients, 5 with an amount per serving of 5.4 g, such as 4,000 mg of vitamin C, 145 mg of calcium, 55 mg of magnesium and 2 mg of zinc. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2020.
What is in Buffered Vitamin C Powder?
Each row as the label prints it, per serving of 5.4 g. 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 Ascorbic Acid | 4,000 mg | 4,444% | This amount is far outside what other labels list for vitamin C, or disagrees with the label's own %DV: possibly a unit or transcription slip in the database. Check the label image on DSLD. |
| Calciumas Calcium CarbonateCalcium (Form: as Calcium Carbonate) | 145 mg | 11% | Higher than 57% of 17,831 products listing calcium (median 115 mg). |
| Magnesiumas Magnesium CarbonateMagnesium (Form: as Magnesium Carbonate) | 55 mg | 13% | 58% of 14,003 products listing magnesium give more (median 86 mg). |
| Zincas Zinc GluconateZinc (Form: as Zinc Gluconate) | 2 mg | 18% | 90% of 13,186 products listing zinc give more (median 11 mg). |
| Potassiumas Potassium CarbonatePotassium (Form: as Potassium Carbonate) | 365 mg | 8% | Higher than 91% of 11,614 products listing potassium (median 99 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 231632 (entered August 23, 2020), 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:
- 90% of the 13,186 products that print an amount of zinc list more than its 2 mg of zinc (median 11 mg).
- Its 365 mg of potassium is higher than 91% of the 11,614 potassium products that print an amount; 1,011 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?
6 products list the very same ingredients; the nearest amounts come first.
- Hypo-Aller CNutriBiotic Immunity same ingredients
- Vitamin C Buffered PowderBeyond Health same ingredients
- Potent C Guard Buffered Ascorbate PowderPerque same ingredients
- Potent C GuardPerque same ingredients
- Buffered Vitamin CNutriBiotic Immunity 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
- Read the entire label and follow the directions carefully prior to use. Directions: Mix one (1) teaspoon of BUFFERED VITAMIN C POWDER into a glass of water. Wait for the fizz to stop before consuming. The minerals buffer out the normally acidic vitamin C to make a pleasant tasting drink.
- Warnings
- Caution: Consuming high doses of this highly potent product can initially cause diarrhea, especially when taken on an empty stomach. Take with meals starting off low and gradually increasing the dose.
- Warnings: -Keep out of reach of children.
- -Do not exceed recommended dose. -Do not purchase if outer seal is broken or damaged.
- -When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.
- Allergens and what it does not contain
- Gluten free Non-GMO LE Certified
- Storage
- To ensure product consistency store tightly closed in a cool, dry place.
- Store tightly closed in a cool, dry place.
Source: label statements in DSLD label 231632.
What else is on the label?
Other ingredients: None.
How many labels does Buffered Vitamin C Powder have?
4 labels are on file under this name since April 22, 2016: other sizes, label designs and reformulations. The current one leads this page.
- Label 231632 (current) Entered August 23, 2020 · on the market · 454 grams · UPC 7 37870 08445 7
- Label 231615 Entered August 23, 2020 · off the market July 14, 2020 · 454 grams · UPC 7 37870 08445 7
- Label 58579 Entered April 22, 2016 · off the market July 14, 2020 · 454 grams · UPC 7 37870 08445 7
- Label 58578 Entered April 22, 2016 · off the market March 12, 2016 · 454 grams · UPC 7 37870 08445 7
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Quality Supplements and Vitamins, Inc. (distributor), Ft. Lauderdale, FL. All Life Extension products.