Insulin is a naturally occurring hormone secreted by the pancreas. Many people with diabetes are prescribed insulin, either because their bodies do not produce insulin (type 1 diabetes) or do not use insulin properly (type 2 diabetes).

There are more than 20 types of insulin sold in the United States. These insulins differ in how they are made, how they work in the body and how much they cost. Your doctor will help you find the right type of insulin for your health needs and your lifestyle.

Insulin basics

Learn how insulin works in the body, how it's made and which types are most commonly prescribed. Get the basics on insulin, starting at the beginning.

Insulin routines

Find an insulin routine that will keep your blood glucose near normal, help you feel good and fit your lifestyle. We're making it easy for you to find an insulin routine that works.

Insulin storage and syringe safety

Follow these tips for storing insulin, using syringes and keeping the supplies you need to your manage diabetes. Get insulin storage and syringe safety tips.

Insulin pumps

Is an insulin pump right for you? Get the facts on insulin pumps so you can consider the pros and cons.