Project Description
Product Description
Minoxidil is a high-purity active pharmaceutical ingredient (API) used in topical formulations for hair growth support. It is a white to off-white crystalline powder with a molecular formula of C₉H₁₅N₅O and a molecular weight of 209.25 g/mol. Its mechanism of action involves the stimulation of hair follicles through the enhancement of blood flow and the prolongation of the anagen (growth) phase of the hair cycle.
Product Specifications
| Parameter | Specification | Test Method |
|---|---|---|
| Assay (C₉H₁₅N₅O, on dried basis) | 98.0% – 102.0% | HPLC |
| Appearance | White to off-white crystalline powder | Visual Inspection |
| Identification | Positive (HPLC retention time) | HPLC |
| Melting Range | 248 – 252°C | USP <741> |
| Loss on Drying | ≤ 1.0% | USP <731> |
| Residue on Ignition | ≤ 0.1% | USP <281> |
| Heavy Metals (Total) | ≤ 20 ppm | USP <231> / ICP-MS |
| Lead (Pb) | ≤ 2.0 mg/kg | ICP-MS |
| Arsenic (As) | ≤ 1.0 mg/kg | ICP-MS |
| Mercury (Hg) | ≤ 0.5 mg/kg | ICP-MS |
| Cadmium (Cd) | ≤ 0.5 mg/kg | ICP-MS |
| Chromium (Cr) | ≤ 0.5 mg/kg | ICP-MS |
| Residual Solvents | Meets USP <467> | GC |
| Limit of Nitrosamines | Meets regulatory requirements | LC-MS/MS |
| Particle Size | As per customer requirement | Sieve Analysis / Laser Diffraction |
| Total Plate Count | ≤ 1,000 CFU/g | USP <61> |
| Salmonella | Negative | USP <62> |
| E. coli | Negative | USP <62> |
Application
Minoxidil is primarily used as an active pharmaceutical ingredient in over-the-counter (OTC) topical solutions and foams for hair loss treatment, typically at concentrations of 2% and 5%. It is also utilized in prescription compounded formulations at higher concentrations (5–10%) for specialized hair growth therapies, and in cosmetic hair care products such as tonics, serums, and scalp treatments at lower levels (0.1–2%). Additionally, Minoxidil serves as a reference standard in pharmaceutical research and quality control laboratories. Its high purity (≥98% USP) and consistent quality make it suitable for a wide range of topical applications, with formulations typically prepared in hydroalcoholic vehicles or foam bases to ensure optimal skin penetration and stability. For all applications, the final concentration and formulation should be validated according to the regulatory requirements of the target market.
Packing & Shipping
Why Choose Us & How to Order?
Located in China, we are the leading minoxidil supplier wholesale. If you purchase from us, we offer many additional convenient services, all of which cannot be easily provided by any other ingredient product and minoxidil wholesale supplier. Please, contact us to get FREE SAMPLE, COA and Nutrition Facts！
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