Insulin is a hormone that is produced by the pancreas and is responsible for regulating blood sugar levels. People with diabetes need to take insulin to control their blood sugar levels. There are several different ways to buy insulin, including through a pharmacy, online, or through a mail-order service.
The most common way to buy insulin is through a pharmacy. Pharmacies typically have a variety of insulin products available, and they can help you choose the right one for your needs. You can also buy insulin online from a variety of websites. However, it is important to make sure that you are buying insulin from a reputable source.