The Definitive Peptide Research Reference Guide — Compound Review

Where to Buy VIP
Online for Research

VIP (Vasoactive Intestinal Peptide) is a 28-amino acid neuropeptide studied for its roles in immune modulation, anti-inflammatory signaling, bronchodilation, and neuroprotection. This guide covers what to look for in a reputable vendor, red flags to avoid, and our top-rated source for research-grade VIP.

Buy VIP at Purgo Labs

Research-Grade VIP — Quick Reference

Form
Lyophilized powder
Purity
≥98% HPLC
MW
3326.8 Da
Storage
-20°C frozen
Typical price range$50–$100 per 5mg vial

What to Look for in a Reputable Vendor

Third-party COA from an accredited US lab (HPLC + mass spectrometry)
Purity 98% or higher confirmed by HPLC analysis
Correct molecular weight verified by mass spectrometry
Lyophilized powder in sealed, labeled vials
US-based manufacturer with verifiable address
Transparent return and quality guarantee policy

Red Flags to Avoid

No certificate of analysis, or COA from an unaccredited lab
Price significantly below market rate (often indicates underdosing)
Vague sourcing with no lab details or country of origin
No customer service contact or physical address
Claims of FDA approval or human-use authorization
Suspiciously high purity claims without documentation
Our Top-Rated Source

Why We Recommend Purgo Labs

Purgo Labs provides research-grade VIP with third-party HPLC and mass spectrometry verification from accredited US laboratories. Every batch ships with a full Certificate of Analysis confirming purity, sequence identity, and molecular weight. US-based manufacturing, transparent sourcing, and a quality guarantee make them our top-rated source for VIP research.

  • Third-party HPLC + mass spec COA on every batch
  • ≥98% purity guaranteed
  • US-based manufacturing and fulfillment
  • Responsive customer support
  • Quality guarantee on all orders
Shop VIP at Purgo Labs

Frequently Asked Questions

Is VIP legal to buy?

VIP (Vasoactive Intestinal Peptide) is legal to purchase as a research chemical in the United States. It is not a controlled substance and is not FDA-approved for human use.

What purity should VIP be?

Research-grade VIP should be 98% or higher purity by HPLC. Reputable vendors provide third-party certificates of analysis confirming both purity and sequence identity.

How is VIP shipped?

Quality vendors ship lyophilized VIP powder in sealed vials at ambient temperature. Reconstituted peptide requires refrigeration at 2 to 8 degrees Celsius.

How much does VIP cost?

A 5mg vial of research-grade VIP typically costs $50 to $100 from reputable US vendors. Its 28-amino acid length makes synthesis more complex and costly than shorter peptides.

Related VIP Guides

Medical Disclaimer: All content on this site is for educational and research purposes only. Research peptides are not FDA-approved for human use. Always consult a qualified healthcare professional before considering any peptide or supplement protocol. Nothing on this site constitutes medical advice, diagnosis, or treatment.