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PrescriptionPeptides
Early Research

VIP

A naturally occurring neuropeptide that connects your gut and brain. Being explored for gut healing, circadian rhythm regulation, and jet lag recovery. Early research but growing interest in the wellness community.

Last reviewed: April 2026Medical review pending

This peptide is not FDA-approved for any indication. Human use outside of clinical trials is not recommended.

The basics

Generic Name
vasoactive intestinal peptide (VIP)
Brand Names
None (not an approved product)
Regulatory Status
Early Research
Therapeutic Areas
Gastrointestinal, Endocrine, Immune & Recovery

Important: This peptide is not yet FDA-approved

VIP has not been approved by the FDA for any use in humans. That means it hasn't gone through the rigorous testing process that confirms a drug is safe and effective. Products sold online have not been evaluated by any regulatory body.

What it does

VIP (vasoactive intestinal peptide (VIP)) is a synthetic peptide that researchers are studying, but it's not yet FDA-approved for any human use. A 28-amino acid neuropeptide that acts on VPAC1 and VPAC2 receptors throughout the body. Regulates circadian rhythms, modulates gut motility and mucosal immunity, promotes vasodilation, and has anti-inflammatory and neuroprotective effects.

The research is still early. Most studies so far are in animals or lab settings, so we don't know for sure how well this translates to real-world results in people.

How it's taken

👃

Nasal spray

💉

Subcutaneous injection

How people access it

Compounding Pharmacy

Available through some compounding pharmacies with a prescription. Often used as a nasal spray for convenience. Typically alternated between nasal and subcutaneous routes.

Regulatory Status

Not FDA-approved. A naturally occurring neuropeptide being studied for gut-brain axis, circadian rhythm, and immune regulation.

Any use in humans outside of an FDA-authorized clinical trial would require an Investigational New Drug (IND) application. Products marketed as “for research use only” are not legally intended for human administration.

What the Evidence Shows

The evidence base for VIP consists primarily of preclinical studies (animal models and in vitro experiments). There are no completed, large-scale, peer-reviewed clinical trials establishing safety or efficacy in humans. The gap between promising animal data and proven human benefit is substantial — many compounds that show effects in animal studies fail to demonstrate safety or efficacy in human trials.

Marketing claims made by online sellers and “peptide clinics” frequently overstate the evidence and omit critical information about risks and unknowns.

Other options to consider

Depending on what you're hoping to achieve, there may be FDA-approved treatments that have been rigorously tested and proven to work. Discuss evidence-based options with your own healthcare provider to find what fits your specific goals.

Browse our full peptide directory to see FDA-approved options that might work for you.

Common Questions

No. VIP is not FDA-approved for any indication. It has no approved NDA or BLA and cannot be legally marketed as a drug for human use.

There is insufficient clinical evidence to establish the safety of VIP in humans. Most available data comes from preclinical studies. Using unapproved substances carries risks including unknown side effects, contamination, and incorrect dosing.

Depending on the condition you are seeking to treat, FDA-approved options may be available. Discuss evidence-based treatments with your own healthcare provider to find options that have undergone rigorous safety and efficacy review.

Curious about what IS approved?

Check out FDA-approved peptides that address similar goals — with established safety profiles and real clinical evidence.

See Approved Options