PlainVitamins

Melatonin 3 mg

by 21st Century · tablet or pill · 90 tablets

  • On the market (NIH)
  • UPC 7 40985 21240 0
  • DSLD label 304111
  • Serving 1 tablet
  • 90 servings

Melatonin 3 mg by 21st Century lists 2 ingredients, 2 with an amount per serving of 1 tablet, such as 94 mg of calcium and 3 mg of melatonin. Its current label entered the NIH Dietary Supplement Label Database on December 14, 2023.

What is in Melatonin 3 mg?

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).

Melatonin 3 mg: Supplement Facts rows against the market (DSLD label 304111, January 2026 release)
IngredientAmount% DVAmong products listing it
Calciumas Calcium Carbonate94 mg7%Calcium in Melatonin 3 mg against 17,831 products94 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg94 mg

59% of 17,831 products listing calcium give more (median 115 mg).

Melatonin3 mgMelatonin in Melatonin 3 mg against 1,557 products3 mg per serving; the middle half of products list 2 mg to 5 mg, the median 3 mg.3 mg

38% of 1,557 products listing melatonin give more (median 3 mg).

Source: NIH ODS Dietary Supplement Label Database, label 304111 (entered December 14, 2023), 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.

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
Directions: As a dietary supplement, adults take one (1) tablet 30 minutes before bedtime or as directed by a healthcare provider. Do not exceed recommended dosage. Individual results may vary.
Warnings
Caution: Do not take if you are operating machinery or a vehicle.
Not intended for use by pregnant or nursing women or those under the age of 18. Warning: Consult a healthcare provider prior to use if pregnant, nursing, on medications, have a medical condition or are planning a medical procedure.
Not intended for use by pregnant or nursing women or those under the age of 18. Keep out of reach of children.
Stop use and contact a physician if adverse reactions occur.
Do not use if product appears to be tampered with or seal is broken.
Allergens and what it does not contain
No added sugar, yeast, preservatives, artificial flavors or colors.
Gluten free
Storage
Store at room temperature.

Source: label statements in DSLD label 304111.

What else is on the label?

Other ingredients: Cellulose, Croscarmellose Sodium, Maltodextrin, Stearic Acid, Magnesium Stearate, Silicon Dioxide.

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 Melatonin 3 mg have?

7 labels are on file under this name since July 25, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 304111 (current) Entered December 14, 2023 · on the market · 90 tablets · UPC 7 40985 21240 0
  2. Label 258474 Entered January 22, 2022 · on the market · 200 tablets · UPC 7 40985 22721 3
  3. Label 206991 Entered October 23, 2019 · on the market · 220 tablets · UPC 7 40985 28003 4
  4. Label 206528 Entered August 23, 2019 · off the market August 6, 2021 · 200 tablets · UPC 7 40985 22721 3
  5. Label 205587 Entered August 23, 2019 · off the market April 23, 2024 · 90 tablets · UPC 7 40985 21240 0
  6. Label 11463 Entered July 25, 2012 · off the market June 28, 2019 · 200 tablets · UPC 7 40985 22721 3
  7. Label 11462 Entered July 25, 2012 · off the market June 28, 2019 · 90 tablets · UPC 7 40985 21240 0

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.

Where next?