1. Buy at a local drugstore: Go to a nearby drugstore and ask the pharmacy staff if they have minoxidil and tell them your needs. They may provide you with the right products.
2. Online shopping: You can enter "minoxidil" in the search box through some large-scale drug e-commerce platforms, then browse related products and choose the right drugs to buy.
3. Buy in the hospital: If your demand is based on a doctor's prescription, you can buy it in the pharmacy of the local hospital. Please see a doctor first and follow his instructions to buy related drugs.
Remember, when buying drugs, you must choose the formal way and follow the relevant medication suggestions.