MSM
by 21st Century · tablet or pill · 180 tablets
- On the market (NIH)
- UPC 7 40985 22278 2
- DSLD label 233576
- Serving 1 tablet
MSM by 21st Century lists 2 ingredients, 2 with an amount per serving of 1 tablet, such as 40 mg of calcium and 1,000 mg of MSM. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2020.
What is in MSM?
Each row as the label prints it, per serving of 1 tablet. 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 |
|---|---|---|---|
| Calciumas Calcium CarbonateCalcium (Form: as Calcium Carbonate) | 40 mg | 4% | 79% of 17,831 products listing calcium give more (median 115 mg). Per day at the most servings: 120 mg. |
| MSM | 1,000 mg | Higher than 74% of 1,454 products listing methylsulfonylmethane (median 500 mg). Per day at the most servings: 3,000 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 233576 (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?
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 3 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?
1 product lists the very same ingredients; the nearest amounts come first.
- MSM 1000 mg21st Century same ingredients
- IntraCalGHC Global Healing Center · off the market 2 shared, 74% alike
- MSM 1000GNC · off the market 1 shared, 70% alike
- MSM 1500GNC · off the market 1 shared, 70% alike
- MSMSundown Naturals · off the market 1 shared, 70% alike
- MSM 1000 mgVitamin World 1 shared, 70% alike
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: As a dietary supplement, adults take one (1) tablet with any meal, three (3) times daily or as directed by a healthcare provider.
- Warnings
- Do not exceed recommended dosage.
- Warning: Consult a healthcare provider prior to use if pregnant, nursing, on medications, have a medical condition or are planning a medical procedure.
- Stop use and contact a physician if adverse reactions occur.
- Keep out of reach of children.
- Do not use if product appears to be tampered with or seal is broken.
- Allergens and what it does not contain
- No added sugar, preservatives, artificial flavors or colors.
- Gluten free
- Storage
- Store at room temperature.
Source: label statements in DSLD label 233576.
What else is on the label?
Other ingredients: Cellulose, Contains Less Than 2% of.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Guaranteed Quality Laboratory Tested.
How many labels does MSM have?
One label is on file, entered on August 23, 2020.
- Label 233576 (current) Entered August 23, 2020 · on the market · 180 tablets · UPC 7 40985 22278 2
DSLD also links this label to: MSM-1000 (package size difference, same product), MSM 1000 mg (package size difference, same product), MSM 1000 mg (package size difference, same product).
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names 21st Century HealthCare, Inc. (manufacturer), Tempe, AZ. All 21st Century products.