PlainVitamins

Formula FM

by Rx Vitamins · other (e.g. tea bag) · 60 caplets

  • On the market (NIH)
  • UPC 7 08429 06060 4
  • DSLD label 42054
  • Serving 1 to 2 caplets; amounts per 1 caplet
  • 60 servings

Formula FM by Rx Vitamins lists 6 ingredients, 6 with an amount per serving of 1 caplet, such as 100 mg of magnesium, 10 mg of vitamin B6, 300 mg of malic acid and 150 mg of MSM. Its current label entered the NIH Dietary Supplement Label Database on February 25, 2015.

What is in Formula FM?

Each row as the label prints it, per serving of 1 caplet. 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).

Formula FM: Supplement Facts rows against the market (DSLD label 42054, January 2026 release)
IngredientAmount% DVAmong products listing it
Magnesiumas Magnesium Glycinate100 mg25%Magnesium in Formula FM against 14,003 products100 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg100 mg

Higher than 51% of 14,003 products listing magnesium (median 86 mg). Per day at the most servings: 200 mg.

Vitamin B6as Pyridoxine10 mg500%Vitamin B6 in Formula FM against 15,277 products10 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg10 mg

Higher than 55% of 15,277 products listing vitamin B6 (median 6 mg). Per day at the most servings: 20 mg.

Malic Acid300 mgMalic Acid in Formula FM against 235 products300 mg per serving; the middle half of products list 222 mg to 1,200 mg, the median 588 mg.300 mg

61% of 235 products listing malic acid give more (median 588 mg). Per day at the most servings: 600 mg.

MSM150 mgMethylsulfonylmethane in Formula FM against 1,454 products150 mg per serving; the middle half of products list 150 mg to 1,000 mg, the median 500 mg.150 mg

73% of 1,454 products listing methylsulfonylmethane give more (median 500 mg). Per day at the most servings: 300 mg.

Boswellinas Boswellia serrataBoswellin (Form: standardized Boswellia serrata (Form: supplying 65% Boswellic Acids) Genus: Boswellia Species: serrata)100 mgBoswellia in Formula FM against 665 products100 mg per serving; the middle half of products list 100 mg to 290 mg, the median 135 mg.100 mg

53% of 665 products listing boswellia give more (median 135 mg). Per day at the most servings: 200 mg.

DL-Phenylalanine50 mgDL-phenylalanine in Formula FM against 155 products50 mg per serving; the middle half of products list 135 mg to 500 mg, the median 300 mg.50 mg

89% of 155 products listing DL-phenylalanine give more (median 300 mg). Per day at the most servings: 100 mg.

Source: NIH ODS Dietary Supplement Label Database, label 42054 (entered February 25, 2015), 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:

  • 89% of the 155 products that print an amount of DL-phenylalanine list more than its 50 mg of DL-phenylalanine (median 300 mg).

The NIH database records 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?

The products whose ingredient lists overlap most with Formula FM's, rare ingredients counting for more.

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
Recommended Usage: As a dietary supplement, 2 caplets twice daily with meals for 6-8 weeks, then 1 caplet twice daily or as recommended by your physician or health care professional.
Warnings
Formula FM is a scientifically designed nutritional supplement that promotes normal functioning of healthy muscle tissue, ligaments and tendons*. The formula features essential nutrients which provide nutritional support for the musculo-skeletal system.
Do Not Use If Tamper-Evident Seal is Broken or Missing.
KEEP OUT OR THE REACH OF CHILDREN.
Storage
Store in a cool, dry place

Source: label statements in DSLD label 42054.

How many labels does Formula FM have?

One label is on file, entered on February 25, 2015.

  1. Label 42054 (current) Entered February 25, 2015 · on the market · 60 caplets · UPC 7 08429 06060 4

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Rx Vitamins Inc. (manufacturer, distributor), Elmsford, NY. All Rx Vitamins products.

Where next?