New — Free Peptide Starter Guide (2026): 13 chapters, 34 cited studies

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ToolsCompareAdipotide vs P21

Adipotide vs P21

Side-by-side comparison of key properties, dosing, and research.

Fat Loss & Metabolic
Adipotide
Cognitive EnhancementAnti-Aging & Longevity
P21
Summary
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.
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
Estimated 2-4 hours
Not well characterized; likely short, but neurogenic effects persist long after administration
Admin Route
Subcutaneous, Intravenous (research)
SubQ, Intranasal
Research
Typical Dose
Not established for humans; primate studies used 0.1-1 mg/kg
100–500 mcg
Frequency
Daily for 4 weeks (research protocol)
Once daily
Key Benefits
  • 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
  • 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
  • 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
  • Generally well tolerated in animal studies
  • Limited human clinical data
  • Injection site reactions
  • Potential mild fatigue at initiation
Stacks With