PlainVitamins

MSM Powder

by NOW · powder · 8 oz.

  • On the market (NIH)
  • UPC 7 33739 02125 0
  • DSLD label 59141
  • Serving 0.5 tsp (approx. 1.8 g)
  • 126 servings

MSM Powder by NOW lists one ingredient: 1.8 g of MSM powder per serving of 0.5 tsp. Its current label entered the NIH Dietary Supplement Label Database on April 22, 2016.

What is in MSM Powder?

Each row as the label prints it, per serving of 0.5 tsp. 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).

MSM Powder: Supplement Facts rows against the market (DSLD label 59141, January 2026 release)
IngredientAmount% DVAmong products listing it
MSM powderMSM powder (Alt. Name: Methylsulfonylmethane) Note: 1,800 mg1.8 gMethylsulfonylmethane in MSM Powder against 1,454 products1,800 mg per serving; the middle half of products list 150 mg to 1,000 mg, the median 500 mg.1,800 mg

Higher than 94% of 1,454 products listing methylsulfonylmethane (median 500 mg). Per day at the most servings: 3,600 mg.

Source: NIH ODS Dietary Supplement Label Database, label 59141 (entered April 22, 2016), 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 1,800 mg of MSM powder (filed by NIH under methylsulfonylmethane) is higher than 94% of the 1,454 methylsulfonylmethane products that print an amount; 82 list more.

The NIH database records 1 to 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?

6 products list the very same ingredients; the nearest amounts come first.

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
Suggested Usage: Take 1/2 teaspoon 1 to 2 times daily in juice or other liquid. If intestinal gas occurs, reduce dosage.
Warnings
Caution: For adults only.
Consult physician if pregnant/nursing, taking medication, or have a medical condition (especially glaucoma).
Keep out of reach of children.
Do Not Eat Freshness Packet Enclosed.
Not manufactured with yeast, wheat, gluten, soy, corn, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Allergens and what it does not contain
Non-GMO
Not manufactured with yeast, wheat, gluten, soy, corn, milk, egg, fish, shellfish or tree nut ingredients.
Storage
Store in a cool, dry place after opening.

Source: label statements in DSLD label 59141.

What else is on the label?

Other ingredients: None.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GMP QUALITY ASSURED.

How many labels does MSM Powder have?

6 labels are on file under this name since October 10, 2014: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 59141 (current) Entered April 22, 2016 · on the market · 8 oz. · UPC 7 33739 02125 0
  2. Label 55297 Entered January 25, 2016 · on the market · 1 lb · UPC 7 33739 02126 7
  3. Label 40363 Entered December 29, 2014 · off the market November 24, 2015 · 1 lb · UPC 7 33739 02126 7
  4. Label 40362 Entered December 29, 2014 · off the market January 19, 2016 · 8 oz. · UPC 7 33739 02125 0
  5. Label 38875 Entered October 27, 2014 · off the market November 26, 2014 · 1 lb · UPC 7 33739 02126 7
  6. Label 37464 Entered October 10, 2014 · off the market November 26, 2014 · 8 oz. · UPC 7 33739 02125 0

DSLD also links this label to: MSM Powder Methylsulphonylmethane (image difference, same product), MSM Powder Methylsulphonylmethane (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 NOW Foods (manufacturer), Bloomingdale, IL. All NOW products.

Where next?