Noopept vs Palmitoyl Tetrapeptide-7
Side-by-side comparison of key properties, dosing, and research.
Cognitive Enhancement
NoopeptSkin & Cosmetic
Palmitoyl Tetrapeptide-7- 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.
- Palmitoyl Tetrapeptide-7 (Rigin) is a cosmetic peptide consisting of palmitic acid linked to the tetrapeptide sequence GQPR (Gly-Gln-Pro-Arg). It was designed to mimic the biological activity of the IgG immunoglobulin C-terminus, which downregulates the production of interleukin-6 (IL-6), a key driver of skin aging and inflammation.
- Half-Life
- ~5–10 minutes but metabolite (CPG) effects last hours
- Topical penetration-dependent; effects last hours to days
- Admin Route
- Oral, Sublingual, Intranasal
- Topical
- Research
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- Typical Dose
- 10–30 mg
- 2-5 ppm concentration in formulation
- Frequency
- 1–2x daily
- Twice daily
- 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
- Reduces IL-6 inflammatory cytokine in skin
- Prevents 'inflammaging' of the skin
- Inhibits MMP collagen-degrading enzymes
- Synergistic with Matrixyl for anti-aging
- Clinically tested for wrinkle and skin texture improvement
- Well-tolerated topically
- Side Effects
- Headaches (choline depletion — pair with choline source)
- Irritability or anxiety at high doses
- Overstimulation
- Rare: brain fog with chronic use
- +1 more
- Contact sensitization (rare)
- Well-tolerated at standard concentrations
- Stacks With
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