If you're not too careful, using the razor can often make the ends look frizzy and unhealthy and it is not suggested for people with curly hair textures. Razor cutting can also thin the hair really well, so it's not a good idea for fine hair types.
Razor cutting is used for many different reasons:
* to thin the hair
* to blunt the ends
* to add more shape and texture
* to create a messy look
* to add movement
New Men Haircut Short 2010