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 · Last updated: Aug 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 Laboratories2017-08-10Source
Recall Rugby Natural Iron Supplement tablets2013-01-17Source
Recall Rugby Children's Pain & Fever Concentrated Drops (Acetaminophen Drops)2011-07-21Source
Lawsuit Failure to have an effective system to identify and report suspicious orders of controlled substances.2011Source
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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 Of the 4 inactive ingredients, 3 are rated safe and 0 are flagged for review.

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?

Rugby Natural L-Tyrosine 500 mg has been analyzed for ingredient safety across all its components. 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.