VIP vs PGPIPN
Side-by-side comparison of key properties, dosing, and research.
- Summary
- VIP is a 28-amino acid neuropeptide with profound anti-inflammatory, vasodilatory, and immunomodulatory effects. It plays a critical role in gut motility, circadian rhythm, and immune tolerance. Used therapeutically for CIRS (Chronic Inflammatory Response Syndrome), MCAS, and inflammatory conditions.
- PGPIPN is a bioactive hexapeptide (Pro-Gly-Pro-Ile-Pro-Asn) derived from beta-casein during enzymatic digestion. It exhibits anti-inflammatory properties via opioid receptor modulation and cytokine suppression, making it relevant for gut health, systemic inflammation, and as a component of casein-derived functional foods.
- Half-Life
- ~2 minutes in plasma (rapidly degraded by peptidases); intranasal delivery may extend local CNS effects
- Estimated 30-120 minutes (peptide degradation)
- Admin Route
- Intranasal, SubQ, IV
- Oral, Subcutaneous (research)
- Research
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- Typical Dose
- 50 mcg (4 sprays of 12.5 mcg each)
- 200-500 mg per day
- Frequency
- 4x daily
- Once or twice daily
- Key Benefits
- Potent anti-inflammatory for CIRS and mold illness
- Improves pulmonary hypertension symptoms
- Regulates gut motility and IBS symptoms
- Modulates circadian rhythm and sleep quality
- Reduces mast cell activation (MCAS)
- Improves cognitive function in neuroinflammatory conditions
- Vasodilatory — reduces vascular resistance
- Anti-inflammatory effects via cytokine suppression
- Gut mucosal protection and intestinal barrier support
- Opioid receptor modulation for gut motility regulation
- Potential analgesic activity via central and peripheral opioid pathways
- Explored for inflammatory bowel conditions and gut dysbiosis
- Natural origin (food-derived) with favorable safety profile
- Side Effects
- Facial flushing (transient, intranasal)
- Mild nausea
- Headache at initiation
- Hypotension at high doses
- +1 more
- Generally very well-tolerated given food-derived origin
- Theoretical opioid-mediated constipation at high doses
- Rare milk protein allergy in casein-sensitive individuals
- Stacks With
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