Depending on the type of hair extension you choose, you could be looking at a small investment. Due to the cost of quality hair extensions, it is only natural for people to be cautious about the details. Exactly how long do hair extensions last? This is a common question that has no specific answer. How long your extensions last will depend on the type of hair extensions you choose. Types of Hair Extensions & How Long They Last Today, there are several common types of hair extensions available, including the following: Temporary Hair Extensions Temporary hair extensions are a type of extension that you can easily put in or take out on a daily or weekly basis. Some type of temporary …