Argireline vs PE-22-28

A detailed comparison to help you understand the differences and choose the right peptide for your research goals.

Argireline

Argireline (Acetyl Hexapeptide-3) is a widely-used cosmetic peptide that reduces wrinkle depth by inhibiting neurotransmitter release. One of the first 'Botox-like' peptides developed for topical use.

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PE-22-28

PE-22-28 is a synthetic peptide fragment derived from research on the SAMP8 mouse model of accelerated aging. It has shown potential for enhancing memory and reducing cognitive decline.

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Side-by-Side Comparison

Aspect	Argireline	PE-22-28
Dose Range	500 mcg–1 mg	500 mcg–2 mg
Frequency	2x daily	1x daily
Cycle Length	4–8 weeks	1–2 weeks
Route	topical	subcutaneous
Mechanism	Inhibits the formation of the SNARE complex required for neurotransmitter release, reducing the intensity of muscle contractions that cause expression lines.	Derived from the protein that is deficient in SAMP8 mice. May work by inhibiting protein phosphatase 2A methylesterase, thereby affecting memory-related signaling pathways.
Typical Dosage	Topical: 5-10% concentration in serums, applied twice daily. Higher concentrations used in professional treatments.	Research protocols vary. Intranasal dosing has been studied at various concentrations. Optimal human dosing not established.
Administration	Topical application to clean skin. Most effective on expression lines (forehead, crow's feet). Consistent use required for visible results.	Intranasal administration preferred for CNS delivery. Research compound with limited human use data.
Side Effects	Generally very well-tolerated. Occasional mild irritation or dryness. No systemic absorption at cosmetic doses.	Very limited human data. Primarily studied in animal models for safety and efficacy.
Best For	Anti-Aging & Longevity Skin Health & Aesthetics	Cognitive Performance Anti-Aging & Longevity