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Rugby Natural L-Tyrosine 500 mg supplement bottle
Rugby

Natural L-Tyrosine 500 mg Review

What We Researched
1 active ingredient analyzed · 4 inactive ingredients decoded · Page generated: Sep 2026
100
Product Score Excellent
—
Brand Score Not rated yet

Product score from label analysis. Rugby hasn't completed our brand research yet. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
L-Tyrosine 500 mg †
Bioavailability Excellent

Absorption Rating

  • L-Tyrosine Good
Other Ingredients Excellent

Fillers & Additives

  • Gelatin
  • Dicalcium Phosphate
  • Maltodextrin
  • Vegetable Magnesium Stearate
Efficacy Excellent

Dosage Analysis

  • L-Tyrosine 500 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
L-Tyrosine 500 mg †

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Dicalcium Phosphate Safe

Serves as both a filler and a supplemental source of calcium and phosphorus.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Vegetable Magnesium Stearate Safe

Prevents ingredients from sticking to equipment. Derived from vegetable sources.

Brand Trust Report
Rugby

Founded 1961 · Livonia, Michigan, USA · 195 products · majorrugby.com/

Transparency

1 claim

Violation History

4 incidents
Recall All liquid products manufactured by PharmaTech LLC and distributed by Rugby Laboratories2017-08-10 Source available Primary source
Recall Rugby Natural Iron Supplement tablets2013-01-17 Source available Primary source
Recall Rugby Children's Pain & Fever Concentrated Drops (Acetaminophen Drops)2011-07-21 Source available Primary source
Lawsuit Failure to have an effective system to identify and report suspicious orders of controlled substances.2011 Source available Primary source
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Frequently Asked Questions
Is Rugby Natural L-Tyrosine 500 mg a good supplement?

Rugby Natural L-Tyrosine 500 mg received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients All 4 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives.

What are the ingredients in Rugby Natural L-Tyrosine 500 mg?

Rugby Natural L-Tyrosine 500 mg contains 1 active ingredients: L-Tyrosine (500 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Rugby Natural L-Tyrosine 500 mg safe to take?

GoodSupp reviewed the inactive-ingredient data available for Rugby Natural L-Tyrosine 500 mg. All 4 inactive ingredients — including capsule materials, fillers, and binders — are currently classified as safe in GoodSupp's ingredient reference data. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.