Inside the PVS Scoring System: Our 5-Pillar Methodology

Overview

The Peptide Verification Score (PVS) is PepAssure's proprietary quality metric. It aggregates five independent data pillars into a single 0-100 score that reflects a vendor's overall reliability and product quality.

The Five Pillars

1. COA Verification (30%)

The largest component. We evaluate:

• •Consistency of COA data across batches
• •Whether HPLC and MS data support the stated purity
• •Lab accreditation and formatting standards
• •Historical COA reliability

2. Purity Testing (25%)

We cross-reference reported purity values against:

• •Industry averages for each peptide type
• •Our internal testing database
• •Third-party lab results when available

3. Reddit Sentiment (20%)

We aggregate mentions across r/Peptides, r/SARMs, r/ResearchChemicals, and related communities:

• •NLP-based sentiment classification (positive, neutral, negative)
• •Volume-weighted scoring — more mentions carry more weight
• •Recency weighting — recent posts matter more
• •Spam and shill detection filters

4. Vendor Transparency (15%)

How open and responsive a vendor is:

• •Response time to PepAssure verification requests
• •Completeness of public listing information
• •Third-party lab testing availability
• •Return/refund policy clarity

5. Order Experience (10%)

Aggregated from user-submitted reviews:

• •Shipping speed and reliability
• •Packaging quality
• •Customer service responsiveness
• •Order accuracy

Score Calculation

Each pillar produces a 0-100 sub-score. The final PVS is a weighted average:

PVS = (COA × 0.30) + (Purity × 0.25) + (Sentiment × 0.20) + (Transparency × 0.15) + (Experience × 0.10)

Scores update daily as new data flows in.

Score Tiers

• •90-100: Exceptional — top-tier vendor with consistent quality
• •80-89: Strong — reliable vendor with minor areas for improvement
• •70-79: Average — acceptable but some concerns flagged
• •60-69: Below Average — significant issues detected
• •Below 60: Poor — major red flags, not recommended