PlainVitamins

Melatonin Plus Magnesium

by Kirkman · capsule · 250 capsules

  • On the market (NIH)
  • UPC 8 12325 02031 7
  • DSLD label 333052
  • Serving 1 capsule
  • 250 servings

Melatonin Plus Magnesium by Kirkman lists 2 ingredients, 2 with an amount per serving of 1 capsule, such as 100 mg of magnesium and 1 mg of melatonin. Its current label entered the NIH Dietary Supplement Label Database on July 24, 2025.

What is in Melatonin Plus Magnesium?

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

Melatonin Plus Magnesium: Supplement Facts rows against the market (DSLD label 333052, January 2026 release)
IngredientAmount% DVAmong products listing it
Magnesiumas Magnesium Oxide100 mg24%Magnesium in Melatonin Plus Magnesium 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).

Melatonin1 mgMelatonin in Melatonin Plus Magnesium against 1,557 products1 mg per serving; the middle half of products list 2 mg to 5 mg, the median 3 mg.1 mg

80% of 1,557 products listing melatonin give more (median 3 mg).

Source: NIH ODS Dietary Supplement Label Database, label 333052 (entered July 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?

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:

  • 80% of the 1,557 products that print an amount of melatonin list more than its 1 mg of melatonin (median 3 mg).

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?

The products whose ingredient lists overlap most with Melatonin Plus Magnesium'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
Suggested Use: Take one capsule daily or as directed by a physician.
Warnings
Keep out of the reach of children. Formulated for adults and children four years and older. For children under four consult a physician.
Caution: Magnesium supplements can cause changes in stool consistency and bowel habits. If this occurs, discontinue use and discuss this matter with your physician.
Allergens and what it does not contain
Free of: Milk, eggs, fish, shellfish, tree nuts, peanuts, wheat and soy
Gluten-free
Storage
Important: Store in a cool dry place and tightly capped.

Source: label statements in DSLD label 333052.

What else is on the label?

Other ingredients: Microcrystalline Cellulose, Hypromellose, Water, Magnesium Stearate.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Ultra Tested cGMP Current Good manufacturing Practices Consistent Quality.

How many labels does Melatonin Plus Magnesium have?

4 labels are on file under this name since August 23, 2013: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 333052 (current) Entered July 24, 2025 · on the market · 250 capsules · UPC 8 12325 02031 7
  2. Label 297228 Entered September 25, 2023 · off the market October 30, 2024 · 250 capsules · UPC 8 12325 02031 7
  3. Label 25028 Entered August 23, 2013 · off the market August 25, 2022 · 250 capsules
  4. Label 25025 Entered August 23, 2013 · on the market · 100 capsules

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

Who makes it?

The label names Kirkman (manufacturer), Lake Oswego, OR. All Kirkman products.

Where next?