Science
Mechanism of Action
Based on research pertaining to NONAPEPTIDE-1 (Melanostatine-5), this peptide functions primarily as an antagonist to alpha-melanocyte-stimulating hormone (α-MSH). It competitively binds to the melanocortin-1 receptor (MC1R) on melanocytes, thereby preventing α-MSH from activating tyrosinase, the key enzyme in melanin synthesis. This inhibition leads to a significant reduction in melanin production and deposition, which helps to diminish hyperpigmentation, dark spots, and promote a more even and brighter skin tone. Furthermore, it is believed to stimulate collagen synthesis, enhancing skin elasticity and reducing the appearance of fine lines and wrinkles, and can also help soften and soothe irritated skin.
Research
Clinical Evidence
High confidence0.0005%
Transparency
Dusting Analysis
Based on research pertaining to NONAPEPTIDE-1 (Melanostatine-5), the term 'NONAPEPTIDE-16' in product listings often refers to a solution containing the peptide, not the pure active peptide. Clinical efficacy has been observed at very low active concentrations (0.0001% to 0.0005%). Consumers should scrutinize products claiming high percentages (e.g., 1% or more) without clarifying if this refers to the active peptide or a diluted solution. A claimed active peptide concentration exceeding 0.0005% without robust supporting data, or above 0.01% as a general red flag, may indicate excessive use or a misleading concentration claim, given that the maximum dosage for the peptide *powder* is 2.0% and for *peptide solution* can range from 1.0% to 8.0%.
The Formula
Formulation
Stability
Based on research pertaining to NONAPEPTIDE-1 (Melanostatine-5), this peptide generally exhibits good stability in various cosmetic bases but benefits from an optimal pH range of 4.5-7.0. For optimal preservation of efficacy, it should be incorporated into formulations at temperatures below 45°C during the final processing step. Storage should be in a cool, dry place, protected from light, ideally between 2-8°C for regular use and -20°C for long-term preservation, while also being kept away from moisture.
Conflicts
- Formaldehyde-releasing preservatives
Safety
Safety Profile
Based on research pertaining to NONAPEPTIDE-1 (Melanostatine-5), this peptide is considered safe for topical use in cosmetic formulations with a low risk of irritation or adverse reactions. Clinical studies have shown it to be well-tolerated by most skin types, including sensitive skin. It does not show obvious risks regarding cancer, developmental & reproductive toxicity, or allergies & immunotoxicity. The existing maximum dosage for leave-on products in China Inventory (2021 version) is 2.0% for the peptide powder. For peptide solutions, dosages from 1.0% to 8.0% are mentioned, with higher dosages varying by country, though these refer to the solution concentration, not the active peptide content.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Based on research pertaining to NONAPEPTIDE-1 (Melanostatine-5), this is a valuable multi-functional peptide, clinically proven to effectively reduce hyperpigmentation and enhance skin tone, with additional anti-aging and soothing benefits, and a favorable safety profile.
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