N-Acetyl Tyrosine
by Jarrow Formulas · capsule · 120 capsules
- Off the market since January 2024 (NIH)
- UPC 7 90011 15051 0
- DSLD label 264920
- Serving 1 capsule
- 120 servings
N-Acetyl Tyrosine by Jarrow Formulas lists 2 ingredients, 2 with an amount per serving of 1 capsule, such as 5 mg of vitamin B6 and 350 mg of N-acetyl tyrosine. Its current label entered the NIH Dietary Supplement Label Database on June 16, 2022.
What is in N-Acetyl Tyrosine?
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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Vitamin B6as Pyridoxine Hydrochloride | 5 mg | 294% | 51% of 15,277 products listing vitamin B6 give more (median 6 mg). Per day at the most servings: 10 mg. |
| N-Acetyl Tyrosine | 350 mg | Higher than 56% of 344 products listing N-acetyl tyrosine (median 250 mg). Per day at the most servings: 700 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 264920 (entered June 16, 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?
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 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?
2 products list the very same ingredients; the nearest amounts come first.
- N-Acetyl Tyrosine 350 mgJarrow Formulas same ingredients
- N-Acetyl-L-Tyrosine 300LifeLink same ingredients
- N-Acetyl L-Tyrosine 300 mgSource Naturals 2 shared, 76% alike
- N-Acetyl L-TyrosineNutraBio 1 shared, 72% alike
- N-Acetyl L-Tyrosine 350 MilligramsNutraBio 1 shared, 72% alike
- NALT N-Acetyl L-TyrosineHard Rhino 1 shared, 72% alike
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
- Usage: Take 1 capsule 1 or 2 times per day, preferably with juice on an empty stomach or as directed by your qualified healthcare professional.
- Warnings
- Note: Consult a healthcare professional before using this product if you are trying to conceive, pregnant, or lactating, under the age of 18, or have a medical condition (especially bipolar, high blood pressure, a history of malignant melanoma or taking MAO inhibitors); if adverse reactions occur, discontinue use.
- Keep out of the reach of children.
- Allergens and what it does not contain
- No wheat, gluten, soybeans, dairy, egg, fish, or peanuts/tree nuts.
- Storage
- Store in a cool, dry place.
Source: label statements in DSLD label 264920.
What else is on the label?
Other ingredients: Cellulose, Capsule, Magnesium Stearate, Silicon Dioxide.
How many labels does N-Acetyl Tyrosine have?
One label is on file, entered on June 16, 2022.
- Label 264920 (current) Entered June 16, 2022 · off the market January 4, 2024 · 120 capsules · UPC 7 90011 15051 0
DSLD also links this label to: N-Acetyl Tyrosine 350 mg (image difference, same product), N-Acetyl Tyrosine 350 mg (image difference, same product), N-Acetyl Tyrosine 350 mg (image difference, same product), N-Acetyl Tyrosine 350 mg (image difference, same product), N-Acetyl Tyrosine 350 mg (image difference, same product), N-Acetyl Tyrosine 350 mg (image difference, same product), N-Acetyl Tyrosine 350 mg (image 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 Jarrow Formulas (distributor), Los Angeles, CA. All Jarrow Formulas products.