L-Tyrosine 500 mg
by Source Naturals · tablet or pill · 100 tablets
- On the market (NIH)
- UPC 0 21078 00190 4
- DSLD label 295959
- Serving 1 tablet
- 100 servings
L-Tyrosine 500 mg by Source Naturals lists 2 ingredients, 2 with an amount per serving of 1 tablet, such as 114 mg of calcium and 500 mg of L-tyrosine. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2023.
What is in L-Tyrosine 500 mg?
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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Calcium | 114 mg | 11% | 50% of 17,831 products listing calcium give more (median 115 mg). |
| L-Tyrosine | 500 mg | 34% of 1,680 products listing tyrosine give more (median 500 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 295959 (entered August 23, 2023), 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?
1 product lists the very same ingredients; the nearest amounts come first.
- L-Tyrosine 500 mgNatural Factors same ingredients
- L-Tyrosine 750 mgNOW · off the market 1 shared, 68% alike
- L-Tyrosine 500 mgVitaCeutical Labs 1 shared, 68% alike
- L-TyrosineDouglas Laboratories 1 shared, 68% alike
- L Tyrosine 500 mgBronson Laboratories · off the market 1 shared, 68% alike
- L-Tyrosine 500 mgGood 'N Natural · off the market 1 shared, 68% 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
- Suggested Use: 1 tablet daily.
- Warnings
- Warning: Contains tyrosine. Not to be used with MAO inhibitor drugs.
- If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.
- Do not use if either tamper-evident seal is broken or missing.
- Keep out of the reach of children.
- Allergens and what it does not contain
- Contains no yeast, dairy, gluten, egg, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.
Source: label statements in DSLD label 295959.
What else is on the label?
Other ingredients: Dibasic Calcium Phosphate, Sorbitol, Stearic Acid, Silicon Dioxide, Colloidal, Magnesium Stearate, modified Cellulose Gum.
How many labels does L-Tyrosine 500 mg have?
4 labels are on file under this name since June 23, 2017: other sizes, label designs and reformulations. The current one leads this page.
- Label 295959 (current) Entered August 23, 2023 · on the market · 100 tablets · UPC 0 21078 00190 4
- Label 295958 Entered August 23, 2023 · on the market · 50 tablets · UPC 0 21078 00189 8
- Label 272443 Entered September 22, 2022 · off the market July 6, 2022 · 100 tablets · UPC 0 21078 00190 4
- Label 75295 Entered June 23, 2017 · off the market December 22, 2021 · 100 tablets · UPC 0 21078 00190 4
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Source Naturals, Inc. (distributor), Santa Cruz, CA. All Source Naturals products.