NB Pure Performance Leucine+ supplement bottle
NB Pure

Performance Leucine+ Review

What We Researched
3 active ingredients analyzed · 1 inactive ingredient decoded · Last updated: Aug 2026
100
Product Score Excellent
61
Brand Score Fair

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
PepForm® Leucine peptides 5 g
Bioavailability Excellent

Absorption Rating

  • PepForm® Leucine peptides Good
Other Ingredients Excellent

Fillers & Additives

  • PepForm® Leucine peptides (as whey peptides from milk)
Efficacy Excellent

Dosage Analysis

  • PepForm® Leucine peptides 5 g Effective

Supplement Facts

Ingredient Amount % Daily Value
Calories 20
Protein 4 g 8%
PepForm® Leucine peptides 5 g

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

PepForm® Leucine peptides (as whey peptides from milk) Unknown
Brand Trust Report
NB Pure

Founded 1996 · Phoenix, Arizona, USA · 22 products · nbpure.com/

Transparency

4 claims
Third Party Testing Claim — Claimed Source
In House Testing — Claimed Source
Testing Lab Disclosure — True

Violation History

2 incidents
Prop 65 Lead and Cadmium2024-02-13Source
Prop 65 Lead2021-03-31Source
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Frequently Asked Questions
Is NB Pure Performance Leucine+ a good supplement?

NB Pure Performance Leucine+ 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 3 active ingredients with 40 servings per container. Of the 1 inactive ingredients, 0 are rated safe and 0 are flagged for review. The manufacturer, NB Pure, holds a brand trust score of 61/100.

What are the ingredients in NB Pure Performance Leucine+?

NB Pure Performance Leucine+ contains 3 active ingredients: Calories (20), Protein (4 g), PepForm® Leucine peptides (5 g). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is NB Pure Performance Leucine+ safe to take?

NB Pure Performance Leucine+ 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.

Is NB Pure a trustworthy supplement brand?

NB Pure receives a brand trust score of 61/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1996 and headquartered in Phoenix, Arizona, USA, the company offers 22 products in their lineup. Note: NB Pure 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 — 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.