Vesilute vs P21
Side-by-side comparison of key properties, dosing, and research.
- Summary
- Vesilute is a tetrapeptide bioregulator (Lys-Glu-Asp-Leu) developed by Professor Vladimir Khavinson, tissue-specific for the retina and visual system. It supports retinal cell function, promotes normalization of photoreceptor protein synthesis, and is studied for age-related macular degeneration (AMD), retinal aging, and vision preservation in the elderly.
- P21 is a synthetic peptide derived from CNTF (ciliary neurotrophic factor) that promotes hippocampal neurogenesis, enhances memory and spatial learning, and may reduce amyloid-beta pathology. It is used as a neurogenic and cognitive enhancer with potential anti-Alzheimer's applications.
- Half-Life
- Short (minutes); sustained gene-regulatory effects
- Not well characterized; likely short, but neurogenic effects persist long after administration
- Admin Route
- SubQ, Oral
- SubQ, Intranasal
- Research
- —
- —
- Typical Dose
- 10 mg per day
- 100–500 mcg
- Frequency
- Daily for 10–30 days
- Once daily
- Key Benefits
- Supports retinal photoreceptor cell function and survival
- May slow progression of age-related macular degeneration
- Reduces retinal cell apoptosis from oxidative stress and aging
- Anti-aging effects on retinal pigment epithelium
- Potential support in diabetic retinopathy management
- Preserves visual acuity with aging
- Complementary to lutein, zeaxanthin, and NAD+ in ocular health protocols
- Promotes hippocampal neurogenesis
- Enhances spatial memory and learning
- Increases BDNF expression
- Reduces amyloid-beta plaque formation (animal models)
- Anti-tau pathology potential
- Cognitive enhancement without stimulant effects
- Potential therapeutic for Alzheimer's and cognitive aging
- Side Effects
- Generally well tolerated
- Mild injection site reactions
- No significant ocular adverse events reported at standard doses
- Generally well tolerated in animal studies
- Limited human clinical data
- Injection site reactions
- Potential mild fatigue at initiation
- Stacks With
- —
- —