P21 vs Adipotide
Side-by-side comparison of key properties, dosing, and research.
- Summary
- 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.
- Adipotide (FTPP) is a chimeric proapoptotic peptide that selectively targets and destroys blood vessels feeding white adipose tissue. It binds prohibitin on the vasculature of fat tissue, delivering a proapoptotic sequence that induces cell death in fat-specific blood vessels, causing targeted fat tissue regression.
- Half-Life
- Not well characterized; likely short, but neurogenic effects persist long after administration
- Estimated 2-4 hours
- Admin Route
- SubQ, Intranasal
- Subcutaneous, Intravenous (research)
- Research
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- Typical Dose
- 100–500 mcg
- Not established for humans; primate studies used 0.1-1 mg/kg
- Frequency
- Once daily
- Daily for 4 weeks (research protocol)
- Key Benefits
- 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
- Targeted reduction of white adipose tissue
- Promotes fat vasculature apoptosis without systemic toxicity
- Demonstrated significant fat loss in primate studies
- Potential for visceral and subcutaneous fat reduction
- Novel non-hormonal mechanism distinct from GLP-1 agonists
- Explored for obesity and metabolic syndrome
- Side Effects
- Generally well tolerated in animal studies
- Limited human clinical data
- Injection site reactions
- Potential mild fatigue at initiation
- Renal toxicity observed in primate studies (transient, dose-dependent)
- Dehydration and electrolyte imbalances in research
- Weight regain upon cessation
- Limited human data; side effect profile largely from animal studies
- Stacks With
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