N-Acetyl L-Tyrosine
by BulkSupplements.com · powder · 100 grams
- On the market (NIH)
- UPC X000HSSKCL
- DSLD label 253983
- Serving 400 mg (about 1/5 teaspoon)
- 250 servings
N-Acetyl L-Tyrosine by BulkSupplements.com lists one ingredient: 400 mg of N-acetyl L-tyrosine per serving of 400 mg. Its current label entered the NIH Dietary Supplement Label Database on October 22, 2021.
What is in N-Acetyl L-Tyrosine?
Each row as the label prints it, per serving of 400 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 |
|---|---|---|---|
| N-Acetyl L-Tyrosine | 400 mg | Higher than 67% of 344 products listing N-acetyl tyrosine (median 250 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 253983 (entered October 22, 2021), version 9.4.0. See the label on DSLD. 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.
- N-Acetyl L-Tyrosine 400 mgNutricost same ingredients
- N-Acetyl L-TyrosineNutraBio same ingredients
- N-Acetyl L-Tyrosine 350 MilligramsNutraBio same ingredients
- N-Acetyl L-Tyrosine 350 mgSwanson Premium Brand · off the market same ingredients
- N-Acetyl L-Tyrosine 350 mgSwanson same ingredients
- N-Acetyl L-TyrosineNootropics Depot 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 400 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
Source: label statements in DSLD label 253983.
What else is on the label?
Other ingredients: None.
How many labels does N-Acetyl L-Tyrosine have?
4 labels are on file under this name since June 23, 2021: other sizes, label designs and reformulations. The current one leads this page.
- Label 253983 (current) Entered October 22, 2021 · on the market · 100 grams · UPC X000HSSKCL
- Label 253985 Entered September 24, 2021 · on the market · 500 grams · UPC X000HSSKCB
- Label 253984 Entered August 23, 2021 · on the market · 250 grams · UPC X000HSSKDF
- Label 252680 Entered June 23, 2021 · on the market · 1 kg · UPC X000HSSKCV
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.