Science
Mechanism of Action
This synthetic peptide operates by mimicking a portion of the beta-catenin protein sequence, thereby engaging signaling pathways crucial for new hair follicle formation. Within the skin, it triggers the transformation of epithelial follicle stem cells into hair keratinocytes, leading to increased hair thickness and regrowth. Its action extends to stimulating hair placode formation, activating dormant hair follicles, promoting epithelial stem cell differentiation, and enhancing bulb stromal cell proliferation, resulting in stronger hair follicles and shafts. Additionally, it offers protective benefits against environmental stressors like UV exposure, which can contribute to hair cell damage.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
Given Decapeptide-18's highly specific mechanism for promoting hair growth, its inclusion in skincare products primarily targeting general skin concerns (e.g., anti-aging, hydration) without a clear hair-centric benefit would likely represent 'dusting'. Its utility is confined to formulations specifically designed for hair follicles, such as eyelash, eyebrow, or scalp growth treatments.
The Formula
Formulation
Stability
Polypeptide stability is generally influenced by its primary and secondary structure, modifications, and storage conditions. For optimal preservation, lyophilized polypeptides like Decapeptide-18 are advised to be stored at -20°C or in a dry environment to prevent premature degradation. Specific optimal pH ranges for its stability in finished formulations are not explicitly documented. For dissolution, basic peptides may utilize 10% acetic acid, while acidic ones may use 10% NH4HCO3; if insoluble in water, organic solvents such as DMSO, DMF, isopropyl alcohol, or methanol can be employed, often by first dissolving in the organic solvent then slowly adding to water or buffer.
Safety
Safety Profile
Decapeptide-18 has not undergone specific review by the Cosmetic Ingredient Review (CIR) Expert Panel or the SCCS. No specific FDA status was identified. However, suppliers indicate the ingredient is free of heavy metals and causes no skin or eye irritation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Decapeptide-18 is a valuable ingredient specifically for formulations targeting hair growth, thickness, and strength, particularly for eyelashes, eyebrows, or scalp applications within a precision skincare brand's portfolio.
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References
Sources