PinnyPeptide

KPV vs VIP (Vasoactive Intestinal Peptide)

Side-by-side comparison: effects, dosing ranges, side effects, regulatory status, and reconstitution.

Peptide A

KPV

Healing & Recovery

Anti-inflammatory tripeptide derived from alpha-melanocyte stimulating hormone.

Peptide B

VIP (Vasoactive Intestinal Peptide)

Healing & Recovery

Broad neuropeptide with anti-inflammatory, immunomodulatory, and vasodilatory activity.

Typical vial

5 mg

Typical dose

200-500 mcg

Half-life

~15-30 minutes (short half-life typical of small peptides)

FDA status

Not FDA approved for human use.

Typical vial

5 mg

Typical dose

50-200 (intranasal) mcg

Half-life

~2 minutes (plasma); longer functional duration via tissue distribution

FDA status

Not FDA approved as therapeutic. VIP analog aviptadil receiv…

KPV effects

  • Potent anti-inflammatory action via NF-kB inhibition
  • Reduces intestinal inflammation when taken orally
  • Exhibits antimicrobial activity against bacteria and fungi
  • Modulates pro-inflammatory cytokine release
  • Supports gut barrier integrity

VIP (Vasoactive Intestinal Peptide) effects

  • Vasodilation and smooth-muscle relaxation
  • Broad anti-inflammatory effects via VPAC1/VPAC2
  • Immunomodulatory: shifts T-helper balance toward Th2/regulatory
  • Circadian rhythm organization (suprachiasmatic nucleus activity)
  • Lung-protective effects in ARDS and pulmonary hypertension models
  • Used clinically in CIRS / biotoxin-illness recovery protocols

KPV side effects

  • Generally well tolerated at studied doses
  • Mild gastrointestinal discomfort at higher doses
  • Temporary skin flushing (rare)

VIP (Vasoactive Intestinal Peptide) side effects

  • Hypotension and flushing (especially with rapid IV)
  • Tachycardia
  • Headache
  • GI effects (cramping, diarrhea at high doses)
  • Intranasal: occasional nasal irritation

KPV dosing ranges

Gut inflammation support

200-500 mcg · Once or twice daily (oral or SubQ) · 4-8 weeks

Systemic anti-inflammatory

200-500 mcg · Once daily (SubQ) · 4-6 weeks

VIP (Vasoactive Intestinal Peptide) dosing ranges

Intranasal CIRS protocol (off-label)

50 mcg · 4 sprays daily · Per Shoemaker protocol; months to years for full restoration

Research / immunomodulation

Variable per protocol · Per protocol · Per protocol

Full KPV guide → Full VIP (Vasoactive Intestinal Peptide) guide →

KPV vs VIP (Vasoactive Intestinal Peptide) — common questions

What is the difference between KPV and VIP (Vasoactive Intestinal Peptide)?

KPV: Anti-inflammatory tripeptide derived from alpha-melanocyte stimulating hormone. Typical dose 200-500 mcg. VIP (Vasoactive Intestinal Peptide): Broad neuropeptide with anti-inflammatory, immunomodulatory, and vasodilatory activity. Typical dose 50-200 (intranasal) mcg. Both fall under the Healing & Recovery category.

Can you stack KPV and VIP (Vasoactive Intestinal Peptide)?

Stacking KPV with VIP (Vasoactive Intestinal Peptide) is a protocol-design question best raised with a clinician — it depends on your goal, current bloodwork, and whether both peptides target overlapping mechanisms. Both peptides should be tracked independently with separate injection sites and timing. PinnyPeptide supports multi-peptide stacks with automatic injection site rotation.

Which is dosed more frequently, KPV or VIP (Vasoactive Intestinal Peptide)?

KPV is typically dosed: Once or twice daily (oral or SubQ) for Gut inflammation support; Once daily (SubQ) for Systemic anti-inflammatory. VIP (Vasoactive Intestinal Peptide) is typically dosed: 4 sprays daily for Intranasal CIRS protocol (off-label); Per protocol for Research / immunomodulation.

Are KPV and VIP (Vasoactive Intestinal Peptide) FDA approved?

KPV: Not FDA approved for human use. VIP (Vasoactive Intestinal Peptide): Not FDA approved as therapeutic. VIP analog aviptadil received Emergency Use Authorization consideration for COVID-19 ARDS but not full approval.

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