Noopept vs Thymosin Alpha-1
Side-by-side comparison of key properties, dosing, and research.
Cognitive Enhancement
NoopeptImmune SupportAnti-Aging & Longevity
Thymosin Alpha-1- Summary
- Noopept is a potent dipeptide-derived nootropic from Russia, structurally related to piracetam but estimated to be 1,000 times more potent by mass. It enhances memory consolidation, learning, and recall while providing neuroprotection via BDNF and NGF upregulation.
- Thymosin Alpha-1 is a naturally occurring 28-amino acid peptide derived from the thymus gland. It is a powerful immune modulator approved in many countries for treating chronic hepatitis B, hepatitis C, and as an adjunct in cancer immunotherapy.
- Half-Life
- ~5–10 minutes but metabolite (CPG) effects last hours
- 2–3 hours
- Admin Route
- Oral, Sublingual, Intranasal
- SubQ
- Research
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- Typical Dose
- 10–30 mg
- 0.8–1.6 mg
- Frequency
- 1–2x daily
- Twice weekly
- Key Benefits
- Enhances memory formation and recall
- Improves learning speed and cognitive processing
- Neuroprotective via BDNF/NGF upregulation
- Anxiolytic at low-to-moderate doses
- Improves verbal fluency and information processing
- Antioxidant (reduces oxidative damage in neurons)
- May improve cognitive symptoms of mild cognitive impairment
- Enhances T-cell and NK cell activity
- Supports recovery from viral and bacterial infections
- May reduce inflammation systemically
- Supports healthy aging and immune resilience
- Improves vaccine response
- Supports liver health
- May help with chronic fatigue syndrome and post-viral conditions
- Approved in multiple countries for hepatitis B and C treatment
- Side Effects
- Headaches (choline depletion — pair with choline source)
- Irritability or anxiety at high doses
- Overstimulation
- Rare: brain fog with chronic use
- +1 more
- Injection site irritation
- Mild flu-like symptoms initially (immune activation)
- Fatigue (rare)
- Stacks With
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