Mazdutide vs Spermidine
Side-by-side comparison of key properties, dosing, and research.
GLP-1 / Weight Loss Agonists
MazdutideAnti-Aging & LongevityCognitive Enhancement
Spermidine- Summary
- Mazdutide is a once-weekly GLP-1/glucagon dual receptor agonist developed by Innovent Biologics and Eli Lilly. Phase 2 trials in Chinese populations demonstrated up to 11.3% body weight reduction at 6 mg over 24 weeks. It also improves liver fat, glycemic control, and lipid profiles. Phase 3 trials are ongoing primarily in China.
- Spermidine is a naturally occurring polyamine found in all living cells, with exceptionally high concentrations in wheat germ, aged cheese, and human sperm. It is the most studied autophagy-inducing dietary compound, shown to extend lifespan across multiple species and reduce cardiovascular and cognitive aging.
- Half-Life
- ~7 days
- ~30–60 minutes, but gut bacteria produce it continuously; supplementation raises tissue levels over weeks
- Admin Route
- SubQ
- Oral
- Research
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- Typical Dose
- 1.5 mg → 3 mg → 4.5 mg → 6 mg
- 1–5 mg
- Frequency
- Once weekly
- Once daily
- Key Benefits
- Up to 11.3% body weight reduction at 24 weeks (Phase 2, 6 mg dose)
- Significant reduction in liver fat content (NAFLD/MASH potential)
- Improves HbA1c and fasting glucose in type 2 diabetes
- Favorable lipid profile changes (reduced triglycerides)
- Once-weekly subcutaneous dosing
- Potential for superior weight loss vs GLP-1 monotherapy
- Induces autophagy — cellular self-cleaning
- Extends lifespan in yeast, flies, worms, and mice
- Reduces cardiovascular aging and arterial stiffness
- Reduces all-cause mortality (human epidemiological data)
- Neuroprotective: reduces amyloid and tau pathology
- Promotes hair growth (anagen phase activation)
- Reduces age-related immune decline
- Improves memory in aging models
- Side Effects
- Nausea
- Vomiting
- Decreased appetite
- Diarrhea
- +3 more
- Generally very well tolerated
- Rare: mild GI discomfort at high doses
- May temporarily reduce some gut bacteria species
- Rare: headache at initiation
- Stacks With
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