L-Tyrosine 500 mg
by Natural Factors · capsule · 60 vegetarian capsules
- On the market (NIH)
- UPC 0 68958 02803 3
- DSLD label 220434
- Serving 2 vegetarian capsules
- 30 servings
L-Tyrosine 500 mg by Natural Factors lists 2 ingredients, 2 with an amount per serving of 2 vegetarian capsules, such as 50 mg of calcium and 1,000 mg of L-tyrosine. Its current label entered the NIH Dietary Supplement Label Database on May 22, 2020.
What is in L-Tyrosine 500 mg?
Each row as the label prints it, per serving of 2 vegetarian capsules. 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 |
|---|---|---|---|
| Calciumas Dicalcium Phosphate | 50 mg | 4% | 72% of 17,831 products listing calcium give more (median 115 mg). Per day at the most servings: 150 mg. |
| L-TyrosineL-Tyrosine Note: pharmaceutical grade | 1,000 mg | Higher than 75% of 1,680 products listing tyrosine (median 500 mg). Per day at the most servings: 3,000 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 220434 (entered May 22, 2020), 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 3 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?
1 product lists the very same ingredients; the nearest amounts come first.
- L-Tyrosine 500 mgSource Naturals 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 Usage: 2 capsules 3 times per day or as directed by a health professional.
- Warnings
- Cautions: As with any supplement, consult your health professional before use if you are pregnant, breastfeeding, or trying to conceive, or if you are taking medication, have a medical condition, or anticipate a surgery.
- Keep out of the reach of children.
- Sealed for your protection. Do not use if seal is broken.
- Allergens and what it does not contain
- Contains no artificial colors, preservatives, or sweeteners; no dairy, starch, sugar, wheat, gluten, yeast, soy, corn, egg, fish, shellfish, animal products, salt, tree nuts, or GMOs.
- Storage
- For freshness, store in a cool, dry place.
Source: label statements in DSLD label 220434.
What else is on the label?
Other ingredients: Vegetarian Capsule, Magnesium Stearate, Silica.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): isura Non-GMO - Mass Spec Documentation Lab tested; Purity & Potency Guaranteed.
How many labels does L-Tyrosine 500 mg have?
2 labels are on file under this name since June 23, 2017: other sizes, label designs and reformulations. The current one leads this page.
- Label 220434 (current) Entered May 22, 2020 · on the market · 60 vegetarian capsules · UPC 0 68958 02803 3
- Label 75735 Entered June 23, 2017 · off the market March 11, 2019 · 60 vegetarian capsules · UPC 0 68958 02803 3
DSLD also links this label to: L-Tyrosine 1000 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 Natural Factors Canada (manufacturer). All Natural Factors products.