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การจัดส่ง:快递, 空运, 陆运, 海运
แนะนำผลิตภัณฑ์
| Parameter Category | Parameter Name | English Value/Specification |
|---|---|---|
| Basic Identification | Chemical Name | Niacinamide; Nicotinamide; 3-Pyridinecarboxamide |
| Abbreviation | VB3; NAM | |
| CAS Registry Number | 98-92-0 | |
| EINECS Number | 202-713-4 | |
| Molecular Formula | C₆H₆N₂O | |
| Molecular Weight | 122.13 g/mol | |
| Chemical Class | Pyridine derivative; B-group vitamin; cosmeceutical active ingredient | |
| Physicochemical Properties | Appearance | White crystalline powder; odorless or with a slight characteristic odor |
| Melting Point | 128–131 °C (literature value) | |
| Boiling Point | 250 °C (decomposes at higher temperatures) | |
| Density (20 °C) | 1.40 g/cm³ | |
| Water Solubility (25 °C) | ~100 g/100 mL (highly soluble) | |
| Organic Solvent Solubility | Soluble in ethanol (1 g/10 mL), glycerol; slightly soluble in acetone; insoluble in ether/benzene | |
| pH Value (5% Aqueous Solution) | 6.0–7.0 (neutral to weakly acidic) | |
| Stability | Stable under normal storage conditions; decomposes under strong light/alkaline conditions | |
| Biological & Cosmetic Efficacy | Mechanism of Action | Blocks melanin transfer to keratinocytes (35–68% inhibition); accelerates keratin turnover; regulates sebum secretion; repairs skin barrier |
| Key Efficacies | Skin brightening/whitening; oil control; anti-acne; barrier repair; anti-aging (reduces fine lines) | |
| Effective Concentration Range | 2–5% (cosmetic formulations for whitening/barrier repair); 5–10% (targeting oily/acne-prone skin) | |
| Synergistic Ingredients | Vitamin C (antioxidant synergy); tranexamic acid (enhanced whitening); zinc (boosted oil control) |
