Testagen vs Teduglutide
Side-by-side comparison of key properties, dosing, and research.
Anti-Aging & Longevity
TestagenRecovery & Repair
Teduglutide- Summary
- Testagen is a tetrapeptide bioregulator (Lys-Glu-Asp-Gly) developed by Professor Vladimir Khavinson, tissue-specific for the testes. It supports Leydig cell function, normalization of testosterone biosynthesis, and spermatogenic activity. Testagen is used in men's health protocols for age-related testosterone decline, male fertility support, and testicular anti-aging.
- 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
- Short (minutes); sustained gene-regulatory effects
- ~2 hours; once-daily dosing due to gut-specific residence
- Admin Route
- SubQ, Oral
- SubQ
- Research
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- Typical Dose
- 10 mg per day
- 0.05 mg/kg/day
- Frequency
- Daily for 10–30 days
- Once daily
- Key Benefits
- Supports endogenous testosterone synthesis via Leydig cell normalization
- Promotes spermatogenesis and sperm quality
- Anti-aging effects on testicular tissue
- May attenuate age-related testosterone decline
- Mechanistically distinct from TRT — does not suppress HPG axis
- Useful adjunct to Gonadorelin and Kisspeptin-10 in male hormonal protocols
- Supports male fertility without exogenous hormone replacement
- 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
- Mild injection site reactions
- No significant endocrine disruption reported at standard doses
- Injection site reactions
- Abdominal pain and bloating
- Nausea
- Risk of intestinal polyp growth (requires colonoscopy surveillance)
- +1 more
- Stacks With
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