PlainVitamins

Mark XV

by DC · tablet or pill · N/A

  • On the market (NIH)
  • DSLD label 309656
  • Serving 1 tablet

Mark XV by DC lists 2 ingredients, 2 with an amount per serving of 1 tablet, such as 1,500 mg of vitamin C and 150 mg of rose hip. Its current label entered the NIH Dietary Supplement Label Database on August 22, 2024.

What is in Mark XV?

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).

Mark XV: Supplement Facts rows against the market (DSLD label 309656, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin C1,500 mg1,667%Vitamin C in Mark XV against 18,583 products1,500 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg1,500 mg

Higher than 99% of 18,583 products listing vitamin C (median 100 mg).

Rose Hip150 mgRose Hip in Mark XV against 85 products150 mg per serving; the middle half of products list 16 mg to 120 mg, the median 40 mg.150 mg

Higher than 75% of 85 products listing rose hip (median 40 mg).

Source: NIH ODS Dietary Supplement Label Database, label 309656 (entered August 22, 2024), 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:

  • Its 1,500 mg of vitamin C is higher than 99% of the 18,583 vitamin C products that print an amount; 176 list more.

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 take 1 tablet daily.
Warnings
Tamper evident: Do not use this product if imprinted foil seal under cap is broken or missing.
Keep out of reach of children.
Caution: If you are pregnant or nursing do not take this product.
Allergens and what it does not contain
Gluten free Non-GMO
Storage
Keep tightly closed. Store at room temperature: 59 degrees - 86 degrees F (15 degrees - 30 degrees C)

Source: label statements in DSLD label 309656.

What else is on the label?

Other ingredients: L-Ascorbic Acid, Cellulose, Stearic Acid, Magnesium Stearate, Silica.

How many labels does Mark XV have?

8 labels are on file under this name since March 25, 2021: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 309656 (current) Entered August 22, 2024 · on the market · N/A
  2. Label 266436 Entered February 23, 2022 · on the market · 90 tablets
  3. Label 266435 Entered February 23, 2022 · on the market · 90 tablets
  4. Label 266434 Entered February 23, 2022 · on the market · 90 tablets
  5. Label 266433 Entered February 23, 2022 · on the market · 60 tablets
  6. Label 266432 Entered February 23, 2022 · on the market · 60 tablets
  7. Label 266431 Entered February 23, 2022 · on the market · 60 tablets
  8. Label 245509 Entered March 25, 2021 · off the market September 12, 2022 · N/A

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?