PlainVitamins

Formula 256

by DC · tablet or pill · 90 tablets

  • On the market (NIH)
  • DSLD label 266590
  • Serving 1 tablet
  • 90 servings

Formula 256 by DC lists 2 ingredients, 2 with an amount per serving of 1 tablet, such as 0.5 mg of vitamin B6 and 2.5 mg of melatonin. Its current label entered the NIH Dietary Supplement Label Database on February 23, 2022.

What is in Formula 256?

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).

Formula 256: Supplement Facts rows against the market (DSLD label 266590, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin B6as Pyridoxine Hydrochloride0.5 mg25%Vitamin B6 in Formula 256 against 15,277 products0.5 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg0.5 mg

95% of 15,277 products listing vitamin B6 give more (median 6 mg). Per day at the most servings: 1 mg.

Melatonin2.5 mgMelatonin in Formula 256 against 1,557 products2.5 mg per serving; the middle half of products list 2 mg to 5 mg, the median 3 mg.2.5 mg

67% of 1,557 products listing melatonin give more (median 3 mg). Per day at the most servings: 5 mg.

Source: NIH ODS Dietary Supplement Label Database, label 266590 (entered February 23, 2022), 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:

  • 95% of the 15,277 products that print an amount of vitamin B6 list more than its 0.5 mg of vitamin B6 (median 6 mg).

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
Directions: Adults, allow one tablet to dissolve under tongue 20 minutes before bedtime. Read warning section of label prior to taking product.
Warnings
Tamper Evident: Do not use this product if imprinted foil seal under cap is broken or missing.
Warning: This product is not to be taken by pregnant or lactating women, individuals with autoimmune conditions or depressive disorders, or children under 16 years of age.
Do not take this product when driving a motor vehicle or operating machinery.
Keep out of reach of children.
Do not exceed two tablets in any 24 hour period.
Allergens and what it does not contain
Gluten free
Storage
Keep tightly closed. Store at room temperature: 59 degrees - 86 degrees F (15 degrees to 30 degrees C).

Source: label statements in DSLD label 266590.

What else is on the label?

Other ingredients: Dextrose, Vegetable Stearic Acid, Vegetable Magnesium Stearate, Silica, Orange crystals, Orange flavor.

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

How many labels does Formula 256 have?

5 labels are on file under this name since February 23, 2022: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 266590 (current) Entered February 23, 2022 · on the market · 90 tablets
  2. Label 266589 Entered February 23, 2022 · on the market · 90 tablets · UPC 0 52301 25690 7
  3. Label 266583 Entered February 23, 2022 · on the market · 45 tablets
  4. Label 266581 Entered February 23, 2022 · on the market · 45 tablets
  5. Label 266557 Entered February 23, 2022 · on the market · 30 tablets · UPC 0 52301 25645 7

DSLD also links this label to: Formula 256 Melatonin 2.5 mg (2,500 mcg) Sublingual Fruit Flavored (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 Dee Cee Laboratories, Inc. (manufacturer), White House, TN. All DC products.

Where next?