The Definitive Peptide Research Reference Guide — Compound Review

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Where to Buy VIP

VIP (Vasoactive Intestinal Peptide, MW 3,326.8 Da) is a 28-amino-acid neuropeptide studied for neuroimmune and circadian research. It is relatively fragile, so handling and storage quality matter more than for many peptides.

What to Look for When Sourcing VIP

Require a third-party COA (HPLC and mass spectrometry) confirming ≥98% purity and the 3,326.8 Da molecular weight. VIP degrades readily, so sealed vials and cold-chain-aware shipping are worth confirming.

Typical Price Range

Research-grade VIP typically costs about $40–$60 per vial.

Storage and Handling

Store lyophilized VIP at 2–8°C, or frozen for longer-term storage. Reconstituted VIP is unstable and should be used promptly and kept cold.

Red Flags to Avoid

Missing COAs, no cold-storage guidance, undocumented purity, and human-use claims.

Top Recommended Source

Purgo Labs is our top-rated source based on third-party COA verification, research-grade purity, and transparent manufacturing. View at Purgo Labs.