VIP: Research Summary and How to Judge a Supplier
Vasoactive intestinal peptide, an endogenous neuropeptide with a broad research literature. This profile sets out what is actually published, what a 10mg vial should cost, and the specific documentation to ask for before ordering VIP from any research supplier.
10mg
Typical vial
$45
Lowest tracked
$64
Median price
56
Vendors listing
What VIP is
VIP is a naturally occurring 28-amino-acid neuropeptide with documented roles in vasodilation, smooth muscle relaxation and immune signalling, and a research literature spanning decades including inhaled formulations studied for pulmonary conditions.
It is notoriously unstable in solution, degrading rapidly once reconstituted, which makes handling guidance from the supplier a genuine quality signal rather than boilerplate.
What the evidence base looks like
There is a real published record behind this compound, spread across animal work and a smaller amount of human data, but not enough controlled evidence to support confident claims.
Our library records roughly 190 relevant publications for VIP and grades the evidence as moderate. That grade describes the weight of research, not a judgement about safety or effect, and it is reviewed as new work is published.
Supplier quality: what to check on VIP
VIP degrades quickly after reconstitution, so storage and handling instructions matter as much as the certificate.
The practical checklist is the same on every product but weighted differently here: a batch-matched certificate of analysis, an identity method appropriate to this molecule rather than purity alone, clear peptide content per 10mg vial, and a supplier that will answer a technical question before taking payment.
Typical UK pricing
The lowest price we currently track for a 10mg vial is £44.90, against a market median nearer £64. Compare on price per milligram rather than per vial, because vial sizes across suppliers are rarely identical.
A listing well below the tracked low is worth investigating rather than celebrating. On this compound the cost of doing it properly is largely analytical, and that is the first thing an unusually cheap supplier stops paying for.
Frequently asked
Is VIP approved for human use?
No. Everything listed here is supplied for laboratory research use only, and nothing on this page is medical advice.
How much should VIP cost?
Tracked UK prices start around £44.90 for a 10mg vial, with the market median closer to £64.
What is the single most useful check on VIP?
VIP degrades quickly after reconstitution, so storage and handling instructions matter as much as the certificate.
Search focus for this profile
vip — Tracked monthly searches, difficulty Monitored. Source: Semrush (UK database).
Supporting terms covered: vip review, buy vip uk, vip price, best vip supplier.
Everything below describes published research and market data. Nothing here is medical advice, and none of these compounds are sold or supplied by CheckALab.
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