PlainVitamins

Effervescent Vitamin C Magnesium Crystals

by Life Extension · powder · 0.397 pounds

  • On the market (NIH)
  • UPC 7 37870 17361 8
  • DSLD label 328441
  • Serving 6 g (1 level teaspoon)
  • 30 servings

Effervescent Vitamin C Magnesium Crystals by Life Extension lists 3 ingredients, 3 with an amount per serving of 6 g, such as 4,500 mg of vitamin C, 4 mg of vitamin B6 and 250 mg of magnesium. Its current label entered the NIH Dietary Supplement Label Database on April 24, 2025.

What is in Effervescent Vitamin C Magnesium Crystals?

Each row as the label prints it, per serving of 6 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).

Effervescent Vitamin C Magnesium Crystals: Supplement Facts rows against the market (DSLD label 328441, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid4,500 mg5,000%

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.

Vitamin B6as Pyridoxine Hydrochloride4 mg235%Vitamin B6 in Effervescent Vitamin C Magnesium Crystals against 15,277 products4 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg4 mg

59% of 15,277 products listing vitamin B6 give more (median 6 mg).

Magnesiumas Magnesium Carbonate250 mg60%Magnesium in Effervescent Vitamin C Magnesium Crystals against 14,003 products250 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg250 mg

Higher than 83% of 14,003 products listing magnesium (median 86 mg).

Source: NIH ODS Dietary Supplement Label Database, label 328441 (entered April 24, 2025), 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?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

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.

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: Drink one (1) level teaspoon mixed in eight ounces of water, without food, followed by an additional eight ounces of water all at once, or as recommended by a healthcare practitioner. Take up to three times per week.
Warnings
Read the entire label and follow the directions carefully prior to use.
Caution: High-dose ascorbic acid may cause diarrhea or gastric upset. If this occurs, lower the dose. Those prone to calcium oxalate kidney stones should consult their doctor before using this product.
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 medial condition or if you are pregnant or lactating.
To report a serious adverse event or obtain product information, contact 1-866-280-2852.
Allergens and what it does not contain
Gluten free Non GMO LE Certified
Storage
Store tightly closed in a cool, dry place.

Source: label statements in DSLD label 328441.

What else is on the label?

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Non GMO LE Certified.

How many labels does Effervescent Vitamin C Magnesium Crystals have?

5 labels are on file under this name since July 25, 2016: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 328441 (current) Entered April 24, 2025 · on the market · 0.397 pounds · UPC 7 37870 17361 8
  2. Label 232319 Entered August 23, 2020 · off the market July 14, 2020 · 180 grams · UPC 7 37870 17361 8
  3. Label 232009 Entered August 23, 2020 · off the market August 9, 2023 · 180 grams · UPC 7 37870 17361 8
  4. Label 62809 Entered July 25, 2016 · off the market June 1, 2016 · 180 grams · UPC 7 37870 17361 8
  5. Label 62808 Entered July 25, 2016 · off the market July 14, 2020 · 180 grams · UPC 7 37870 17361 8

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.

Where next?