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L-Tyrosine Powder

Source Naturals
4.7
★ ★ ★ ★ ★
(688 ratings)
Tyrosine 660 mg
Product Image
Score96

A pure, filler-free tyrosine powder for flexible and cost-effective focus support.

How scoring works
Quantity:3 Ounce(s) • (149 servings)
Goals:
Brain Health

Score 96

A pure, filler-free tyrosine powder for flexible and cost-effective focus support.

How scoring works
$14.59($0.09 per serving)
Vitacost
$ 14.69
Pure Formulas
$ 7.69
iHerb
$ 14.59
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Analysis

Each serving of this pure powder provides 660mg of L-tyrosine, allowing you to easily adjust your intake as needed. It is free of any capsules or extra ingredients, focusing purely on the amino acid itself.

The powder format is absorbed efficiently and is a very practical way to get focus support during a long work day. It is an incredible value for anyone who supplements with tyrosine regularly.

Pros

  • No fillers or artificial additives
  • Incredible number of servings
  • Fully customizable dosage
  • Very cost-effective choice

Cons

  • Must be mixed into a liquid
  • Tyrosine has a specific chalky taste
  • No capsule convenience

Warnings

  • Consult a professional if you have thyroid issues
  • Store in a dry location
  • Avoid taking with high-protein foods

Nutrient quality

95 Highest impact

The 660 mg dose provides a meaningful and slightly higher-than-average level of support for neurotransmitter synthesis. Powder format ensures maximum purity and flexibility without the need for capsule materials.

Ingredient transparency

97 Highest impact

Labeling clearly identifies the amount of active ingredient per scoop, though user measurement may introduce slight variation. Transparency is absolute, as the formula contains only the active amino acid.

Customer satisfaction

91 Highest impact

Ratings are strong, demonstrating high confidence among users who prefer a flexible powder format. Feedback suggests the product is highly effective for maintaining cognitive drive and mental focus.

Value for money

100 Highest impact

Cost per serving is outstanding, representing one of the most efficient ways to supplement this active ingredient. High potency and large serving count justify its strong value proposition.

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Goals

Brain Health
Impact
Highest effect
B+ Goal FitA- Strength of SupportD CoverageA+ Formula Quality

L-tyrosine serves as a direct precursor for neurotransmitters that support focus and mental drive under stress. This amino acid may contribute to cognitive performance during periods of acute pressure or sleep deprivation.

The formulation provides straightforward precursor support for dopamine and norepinephrine synthesis. Meaningful dosages of the active isomer in powder form ensure that the biological pathways for mental focus are well addressed.

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Ingredients

IngredientAmount per serving
L-Tyrosine
660 mg
Gluten Free Adults 18–50 Dairy Free Sugar Free
Report overview
Tyrosine · 660 mg OverallScore94
A- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
This pure L-Tyrosine powder provides a flexible and effective 660mg dose per serving. It is one of the most affordable and transparent options on the market for targeted neurotransmitter support.
View ingredientView products
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Jarrow Formulas
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(5261 ratings)
This highly-rated alternative offers the convenience of pre-measured capsules with a standard 500 mg dose for an excellent price. It represents a solid balance of quality and value for daily brain health support.
Other sellers (5)
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Best L-Tyrosine 500 mg

Doctor's Best
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(5125 ratings)
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Country Life
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L-Tyrosine 750 mg - Extra Strength

NOW
4.7
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(25476 ratings)
Moving to a 750 mg extra-strength dose provides more robust support for brain health than the base 660 mg serving. This higher concentration is better suited for maintaining focused attention during intense mental tasks.
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(3405 ratings)
Delivering a potent 1000 mg dose per serving offers the strongest support for those seeking to maximize their cognitive drive. This high strength more intensely assists with the synthesis of key neurotransmitters.
Other sellers (2)
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Pharmaceutical Grade AjiPure L-Tyrosine 500 mg

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4.6
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