VIP vs Alpha-GPC
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.
- Alpha-GPC is the most bioavailable form of choline, readily crossing the blood-brain barrier to rapidly increase acetylcholine levels. It enhances cognitive performance, supports GH secretion, and is used as an essential complement to many nootropic peptides (especially those that increase acetylcholine demand like Noopept and Dihexa).
- Half-Life
- ~2 minutes in plasma (rapidly degraded by peptidases); intranasal delivery may extend local CNS effects
- ~4–6 hours
- Admin Route
- Intranasal, SubQ, IV
- Oral, SubQ
- Research
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- Typical Dose
- 50 mcg (4 sprays of 12.5 mcg each)
- 300–600 mg
- Frequency
- 4x daily
- 1–2x 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
- Rapidly raises brain acetylcholine levels
- Enhances memory formation and recall
- Prevents headaches from nootropic peptides (choline donor)
- Stimulates growth hormone secretion (modest)
- Improves attention and processing speed
- Neuroprotective in Alzheimer's and cognitive decline
- Approved in Europe for Alzheimer's therapy
- Enhances power output in athletes (pre-workout)
- Side Effects
- Facial flushing (transient, intranasal)
- Mild nausea
- Headache at initiation
- Hypotension at high doses
- +1 more
- Headache (paradoxically, from excess acetylcholine at very high doses)
- Nausea at doses > 1200 mg
- Dizziness
- Fatigue at high doses
- +1 more
- Stacks With
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