PlainVitamins

X-Hist

by HoltraCeuticals · capsule · 120 capsules

  • On the market (NIH)
  • UPC 6 15033 64524 3
  • DSLD label 274453
  • Serving 1 capsule
  • 120 servings

X-Hist by HoltraCeuticals lists 5 ingredients, 5 with an amount per serving of 1 capsule, such as 150 mg of vitamin C, 200 mg of quercetin dihydrate, 200 mg of stinging nettle and 50 mg of bromelain. Its current label entered the NIH Dietary Supplement Label Database on September 22, 2022.

What is in X-Hist?

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).

X-Hist: Supplement Facts rows against the market (DSLD label 274453, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic AcidVitamin C (Form: as Ascorbic Acid Note USP)150 mg167%Vitamin C in X-Hist against 18,583 products150 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg150 mg

Higher than 58% of 18,583 products listing vitamin C (median 100 mg).

Quercetin Dihydrate200 mgQuercetin in X-Hist against 1,548 products200 mg per serving; the middle half of products list 26.5 mg to 250 mg, the median 100 mg.200 mg

Higher than 66% of 1,548 products listing quercetin (median 100 mg).

Stinging Nettle200 mgStinging Nettle in X-Hist against 710 products200 mg per serving; the middle half of products list 50 mg to 300 mg, the median 120 mg.200 mg

Higher than 61% of 710 products listing stinging nettle (median 120 mg).

Bromelainas PineappleBromelain 2,400 GDU/g50 mgBromelain in X-Hist against 1,337 products50 mg per serving; the middle half of products list 25 mg to 200 mg, the median 50 mg.50 mg

50% of 1,337 products listing bromelain give more (median 50 mg).

N-Acetyl-L-CysteineUSP25 mgN-Acetyl Cysteine in X-Hist against 1,259 products25 mg per serving; the middle half of products list 55 mg to 500 mg, the median 150 mg.25 mg

89% of 1,259 products listing N-acetyl cysteine give more (median 150 mg).

Source: NIH ODS Dietary Supplement Label Database, label 274453 (entered September 22, 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:

  • 89% of the 1,259 products that print an amount of N-acetyl cysteine list more than its 25 mg of N-acetyl-L-cysteine (filed by NIH under N-acetyl cysteine) (median 150 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 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.

Warnings
If your are pregnant or nursing, consult your physician before taking this product.
As with all dietary supplements, some individuals may not tolerate or may be allergic to the ingredients used. Please read the ingredient panel carefully prior to ingestion. Cease taking this product and consult your physician if you have a negative reaction upon ingestion.
Keep out of reach of children.
This product was sealed for your protection. Do not use if outer logoed neck seal or inner-seal is missing or damaged.
Allergens and what it does not contain
Formulated to be free of allergens derived from: Gluten, yeast, artificial colors and flavors.
Storage
Suggested use: 1 capsule per day or as recommended by your health care professional.
Keep container tightly closed. Store at room temperature.

Source: label statements in DSLD label 274453.

What else is on the label?

Other ingredients: natural Vegetable Capsules, Magnesium Stearate, Silicon Dioxide, Stearic Acid.

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

How many labels does X-Hist have?

One label is on file, entered on September 22, 2022.

  1. Label 274453 (current) Entered September 22, 2022 · on the market · 120 capsules · UPC 6 15033 64524 3

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

Who makes it?

The label names Holtorf Medical Group Centers for Hormone Balance, Hypothyroidism and Fatigue (distributor), El Segundo, CA. All HoltraCeuticals products.

Where next?