L-Histidine Base
by BulkSupplements.com · powder · 500 grams
- On the market (NIH)
- UPC X000QJUEB1
- DSLD label 312160
- Serving 500 mg (about 1/5 teaspoon)
- 1000 servings
L-Histidine Base by BulkSupplements.com lists one ingredient: 500 mg of L-histidine per serving of 500 mg. Its current label entered the NIH Dietary Supplement Label Database on June 20, 2024.
What is in L-Histidine Base?
Each row as the label prints it, per serving of 500 mg. 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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| L-HistidineL-Histidine base | 500 mg | Higher than 84% of 591 products listing histidine (median 125 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 312160 (entered June 20, 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?
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.
- 100% Pure L-HistidineNutraBio same ingredients
- 100% Pure L-Histidine 500 MilligramsNutraBio same ingredients
- Pharmaceutical Grade AjiPure L-Histidine 500 mgSwanson Ultra same ingredients
- L-Histidine 500 mgDouglas Laboratories same ingredients
- L-Histidine HClBulkSupplements.com same ingredients
- L-Histidine 500 mg CapsulesBulkSupplements.com same ingredients
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: As a dietary supplement, take 500 mg (about 1/5 tsp) once daily, or as directed by a physician.
- Warnings
- Always consult a physician before taking any dietary supplement.
- Keep out of reach of children.
- Allergens and what it does not contain
- Free of: Added sugar, soy, dairy, yeast, gluten, additives
- Storage
- Store in a dry, cool place Contents are sold by weight, not volume. Settling may occur.
Source: label statements in DSLD label 312160.
How many labels does L-Histidine Base have?
8 labels are on file under this name since August 23, 2021: other sizes, label designs and reformulations. The current one leads this page.
- Label 312160 (current) Entered June 20, 2024 · on the market · 500 grams · UPC X000QJUEB1
- Label 312159 Entered June 20, 2024 · on the market · 250 grams · UPC X000QJUCTZ
- Label 312158 Entered June 20, 2024 · on the market · 100 grams · UPC X000QJU9YX
- Label 312157 Entered June 20, 2024 · on the market · 1 kilogram · UPC X000QJU2QX
- Label 254484 Entered October 22, 2021 · on the market · 500 grams · UPC X000QJUEB1
- Label 254483 Entered October 22, 2021 · on the market · 250 grams · UPC X000QJUCTZ
- Label 254482 Entered October 22, 2021 · on the market · 100 grams · UPC X000QJU9YX
- Label 252771 Entered August 23, 2021 · on the market · 1 kg · UPC X000QJU2QX
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names BulkSupplements.com (distributor), Henderson, NV. All BulkSupplements.com products.