N-Acetyl L-Tyrosine 300 mg®

Other Combinations

Brand: Source Naturals

Tablet or PillOther CombinationsOn Market

Functions

Brain & Cognition

Product label for N-Acetyl L-Tyrosine 300 mg — Click to view full label

Net Contents

30 Tablet(s)

Serving Size

1 Tablet(s)

Servings Per Container

Supplement Form

Tablet or Pill

Bar Code (UPC/SKU)

0 21078 00930 6

Product Version

SN0930 REV H102

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

3Active Ingredients

3 distinct active ingredients are disclosed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

2% Daily Value Coverage

2 ingredients report a %DV; 2 meet or exceed 100% DV.

1Dietary Attributes

Label states: Gluten-Free.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen Guide

Contains

Milk
Egg
Wheat
Soy
Gluten

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Supplement Facts

Serving Size: 1 Tablet(s) · 1 per day

Ingredient	Amount Per Serving	% Daily Value
Vitamin B6(Pyridoxine Hydrochloride)	25 mg	1250%
Folate(Folic Acid)	400 mcg	100%
N-Acetyl L-Tyrosine	300 mg	—

Not Present

Other Ingredients

SorbitolStearic AcidMagnesium Stearatemodified Cellulose GumColloidal Silicon Dioxide

Target Groups

Adult (18 - 50 Years)Gluten FreeDairy FreeSugar Free

Label Claims

NutrientAll OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested use: 1 tablet daily.

Warnings & Precautions

Precautions re: Pregnant or Nursing or Prescription Medications

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.

Precautions re: All Other

Do not use if either tamper-evident seal is broken or missing.

Precautions re: Children

Keep out of the reach of children.

Formulation

Formula re: Contains

N-acetyl L-tyrosine is a more rapidly absorbed and bioavailable form of the amino acid L-tyrosine, and is less prone to urinary excretion. L-Tyrosine is converted in the body to key biological compounds, including epinephrine, dopamine, L-dopa, CoQ10, thyroid hormones, and melanin. The B vitamins pyridoxine (B-6) and folic acid are provided to assist in the conversion process.

Formulation re: Does NOT Contain

Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.

FDA Statements

FDA Statement of Identity

Dietary Supplement

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Other Label Statements

Brand IP Statement(s) re: (c), (TM), (SM)

Manufacturer & Distributor

Distributor

Source Naturals, Inc.

P. O. Box 2118, Santa Cruz, CA, 95062

Market Reference

$7.16 – $44.99· 5 listings

N-Acetyl L-Tyrosine Source Naturals
Vitacost.com4.7(134)
$21.45
Nutricost N-Acetyl L- Tyrosine Capsules
Target4.7(493)
$13.00
Source Naturals L Tyrosine
Herbs Direct4.8(569)
$7.16Lowest
3 x N-Acetyl L-Tyrosine, 350mg 60 capsules - Swanson
Naturitas4.6(381)
$18.81
Source Naturals L-Tyrosine Free-Form Powder 3.53 oz (100 g)
GoSupps.com4.8(569)
$44.99

Where to Buy Locally

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

The Vitamin Shoppe
4.4 (142)
Vitamin & supplements store
10020 W McDowell Rd #101, Avondale, AZ 85392
Directions (623) 478-0898
GNC
4.0 (63)
Vitamin & supplements store
9925 W McDowell Rd Ste 104, Avondale, AZ 85392
Directions (623) 478-1810
Discount Nutrition Superstore
4.9 (1069)
Vitamin & supplements store
1912 E Camelback Rd, Phoenix, AZ 85016
Directions (602) 606-2513
KISMET Nutrients
Vitamin & supplements store
2226 W Northern Ave ste c-140, Phoenix, AZ 85021
Directions (800) 528-0559
Maximo Natural Products
4.0 (4)
Vitamin & supplements store
1615 W Camelback Rd Ste B-104, Phoenix, AZ 85015
Directions (602) 265-6950
GNC
3.7 (54)
Vitamin & supplements store
8987 W Olive Ave SPACE A-125, Peoria, AZ 85345
Directions (602) 704-1617
The Vitamin Shoppe
4.5 (144)
Vitamin & supplements store
7708 W Bell Rd Ste 150, Glendale, AZ 85308
Directions (623) 979-7387
GNC
4.8 (4)
Vitamin & supplements store
7071 N 138th Ave Building #1540, Glendale, AZ 85307
Directions (623) 535-9661

Research & Studies

Effects of acute ingestion of a pre-workout dietary supplement with and without p-synephrine on resting energy expenditure, cognitive function and exercise …
YP Jung, C Earnest, M Koozehchian, E Galvan… - 2017 - oaktrust.library.tamu.edu
… , N-Acetyl-L-Tyrosine (300 mg), caffeine (284 mg), Mucuna pruiriens extract standardized for 15% L-Dopa (15 mg), Vitamin C as Ascorbic Acid (500 mg), niacin (60 mg)… required medical …
201768 citations
N-acetyl-L-tyrosine as a tyrosine source in adult parenteral nutrition
JL Hoffer, K Sher, F Saboohi, P Bernier… - Journal of Parenteral …, 2003 - ovid.com
… in the absence of tyrosine, is 39 mg/kgday-1.The water solubility of N-acetyl-L-tyrosine (NAT) initially … in the urine of healthy adults, with no rise in plasma tyrosine concentrations either in …
200317 citations
Recent advances in marine-based nutraceuticals and their health benefits
V Šimat, N Elabed, P Kulawik, Z Ceylan, E Jamroz… - Marine drugs, 2020 - mdpi.com
… Chitin and chitosan are natural polymers with the same chemical structure (Figure 1). Both consist of a mixture of mainly N-acetyl-D-glucosamine and a small amount of D-glucosamine. …
2020170 citations
Performance Lab Review 2026: An Honest 6-Month Test of Their Complete Supplement Range
M Reid - ultimatestrengths.com
… L-Tyrosine (as N-Acetyl L-Tyrosine) — 175 mg. A precursor to dopamine and noradrenaline… on Mind Lab Pro due to the citicoline and L-tyrosine content — but you should consult your …
N-acetyl-L-tyrosine and N-acetyl-L-cysteine as tyrosine and cysteine precursors during intravenous infusion in humans
I Magnusson, L Ekman, M Wångdahl, J Wahren - Metabolism, 1989 - Elsevier
… The usefulness of Kacetyl-L-tyrosine … Eleven healthy volunteers were given 5 g of either NAT or NAC as a Chour intravenous infusion. Plasma levels of NAT and NAC increased rapidly, …
198951 citations
Best Nootropics For Memory: 11 Top Brain Supplements For Working Memory & Memory Loss
P Tardner - 2021 - ijest.org
… , highly potent forms of Tyrosine such as N-Acetyl-L-Tyrosine. You can also usually get more … and seek medical attention. This is not medical advice and we are not medical professionals…
2021

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2023-08-23. DSLD Label ID: 296098. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.