P21 vs Teduglutide
Side-by-side comparison of key properties, dosing, and research.
Cognitive EnhancementAnti-Aging & Longevity
P21Recovery & Repair
Teduglutide- 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.
- Teduglutide is a GLP-2 (glucagon-like peptide-2) analog with enhanced stability. Unlike GLP-1, GLP-2 specifically acts on the intestinal epithelium to increase intestinal length, villus height, and absorption surface area. FDA-approved as Gattex for short bowel syndrome, it is also being investigated for IBD, leaky gut, and mucosal healing.
- Half-Life
- Not well characterized; likely short, but neurogenic effects persist long after administration
- ~2 hours; once-daily dosing due to gut-specific residence
- Admin Route
- SubQ, Intranasal
- SubQ
- Research
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- Typical Dose
- 100–500 mcg
- 0.05 mg/kg/day
- Frequency
- Once daily
- Once daily
- 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
- Increases intestinal villus height and absorption surface area
- Reduces intestinal permeability (leaky gut)
- FDA-approved for short bowel syndrome
- Reduces parenteral nutrition dependence in SBS patients
- Promotes intestinal mucosal healing in IBD
- Increases tight junction proteins ZO-1 and occludin
- Side Effects
- Generally well tolerated in animal studies
- Limited human clinical data
- Injection site reactions
- Potential mild fatigue at initiation
- Injection site reactions
- Abdominal pain and bloating
- Nausea
- Risk of intestinal polyp growth (requires colonoscopy surveillance)
- +1 more
- Stacks With
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