Science
Mechanism of Action
This advanced octapeptide operates by interfering with the SNARE complex, a critical protein assembly involved in neurotransmitter release. By mimicking the N-terminal end of the SNAP-25 protein, Acetyl Octapeptide-3 competes for a position within this complex, thereby decreasing its stability and hindering its formation. This action reduces neuronal excitability and inhibits the release of acetylcholine, the neurotransmitter responsible for muscle contraction. The resulting relaxation of facial muscles effectively diminishes the appearance of dynamic wrinkles, particularly those on the forehead and around the eyes. Beyond its muscle-relaxing properties, it functions as a humectant, enhancing skin moisture retention, and provides antioxidant benefits against free radical damage.
Research
Clinical Evidence
Medium confidence0.005%
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Optimal stability is achieved within a pH range of 5.0-7.0. For best integration and preservation, it should be added to formulations during the cool-down phase, specifically below 40°C. This ingredient is hygroscopic, requiring protection from light and long-term storage at -20°C to maintain its integrity.
Safety
Safety Profile
Generally considered safe for topical application. While the Cosmetic Ingredient Review (CIR) has not specifically reviewed Acetyl Octapeptide-3, mild and temporary side effects such as irritation or redness have been reported by some individuals. The Environmental Working Group (EWG) has rated Acetyl Octapeptide-1 (often considered synonymous with Acetyl Octapeptide-3) as '1' (low hazard).
Your Skin
Skin Compatibility
Our Assessment
Verdict
OCTAPEPTIDE-26 (Acetyl Octapeptide-3) is a valuable neuro-peptide for precision skincare, effectively reducing expression lines and enhancing skin hydration across all skin types with a low risk of irritation, making it a powerful addition to anti-aging formulations.
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