Super Nutrition Leucine Enriched Essential Amino Acids with L-Leucine, L-Lysine, L-Threonine, and L-Isoleucine, Unflavored, 10.58 oz (300 g) supplement bottle
Super Nutrition

Leucine Enriched Essential Amino Acids with L-Leucine, L-Lysine, L-Threonine, and L-Isoleucine, Unflavored, 10.58 oz (300 g)

What We Researched
2 active ingredients analyzed · 1 inactive ingredient decoded · 5 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
93
Product Score Excellent
92
Brand Score Excellent

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Leucine Enriched Essential Amino Acid BlendL-Leucine, L-Lysine, L-Threonine, L-Isoleucine, L-Valine, L-Phenylalanine, L- Methionine, L-Histidine, L-Tryptophan (5,000 mg) 5 g
Bioavailability Excellent

Absorption Rating

  • Leucine Enriched Essential Amino Acid BlendL-Leucine, L-Lysine, L-Threonine, L-Isoleucine, L-Valine, L-Phenylalanine, L- Methionine, L-Histidine, L-Tryptophan (5,000 mg) Good
Other Ingredients Excellent

Fillers & Additives

  • Sunflower Lecithin
Efficacy Very Good

Dosage Analysis

  • Leucine Enriched Essential Amino Acid BlendL-Leucine, L-Lysine, L-Threonine, L-Isoleucine, L-Valine, L-Phenylalanine, L- Methionine, L-Histidine, L-Tryptophan (5,000 mg) 5 g High

Supplement Facts

Ingredient Amount % Daily Value
Calories 20
Leucine Enriched Essential Amino Acid BlendL-Leucine, L-Lysine, L-Threonine, L-Isoleucine, L-Valine, L-Phenylalanine, L- Methionine, L-Histidine, L-Tryptophan (5,000 mg) 5 g

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Sunflower Lecithin Safe

Helps mix oil and water-based ingredients. Allergen-free alternative to soy lecithin.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$39$38$37$36$35 Mar 12 $36.61
iHerb

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Super Nutrition

Founded 1977 · Oakland, CA, United States · 70 products · supernutritionusa.com/

Certifications

5 certifications
Informed Sport Verified Source
Non Gmo Project Verified Source
Npa Gmp Verified Source
Usda Organic Verified Source
Fda Gmp Inspections Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Coa Availability — Verified Source
In House Testing — Verified Source

Violation History

2 incidents
Recall NOW Real Food® Raw Macadamia Nuts2020-06-12Source
Prop 65 Lead and/or Cadmium2018-07-12Source
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Frequently Asked Questions
Is Super Nutrition Leucine Enriched Essential Amino Acids with L-Leucine, L-Lysine a good supplement?

Super Nutrition Leucine Enriched Essential Amino Acids with L-Leucine, L-Lysine, L-Threonine, and L-Isoleucine, Unflavored, 10.58 oz (300 g) received a product quality score of 93/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 2 active ingredients with 60 servings per container. All 1 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Super Nutrition, holds a brand trust score of 92/100 with 5 verified certifications including Informed Sport, Non Gmo Project, Npa Gmp, Usda Organic.

What are the ingredients in Super Nutrition Leucine Enriched Essential Amino Acids with L-Leucine, L-Lysine?

Super Nutrition Leucine Enriched Essential Amino Acids with L-Leucine, L-Lysine contains 2 active ingredients: Calories (20), Leucine Enriched Essential Amino Acid BlendL-Leucine, L-Lysine, L-Threonine, L-Isoleucine, L-Valine, L-Phenylalanine, L- Methionine, L-Histidine, L-Tryptophan (5,000 mg) (5 g). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Super Nutrition Leucine Enriched Essential Amino Acids with L-Leucine, L-Lysine safe to take?

Super Nutrition Leucine Enriched Essential Amino Acids with L-Leucine, L-Lysine, L-Threonine, and L-Isoleucine, Unflavored, 10.58 oz (300 g) has been analyzed for ingredient safety across all its components. All 1 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Super Nutrition a trustworthy supplement brand?

Super Nutrition receives a brand trust score of 92/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1977 and headquartered in Oakland, CA, United States, the company offers 70 products in their lineup. They hold 5 verified certifications including Informed Sport, Non Gmo Project, Npa Gmp, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Super Nutrition has 2 historical regulatory incidents on record, which are factored into the trust score.

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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. 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.