My Hair is Grade A Virgin Brazilian Human Hair , This hair should last about 3 years with proper care. The hair has been chemically processed for the style that you desire, for example, not everyone is born with naturally straight hair, so it has went through a process to become bone straight. My bundles can be dyed, permed, and bleached. I have personally tried this hair. I have slept on it unwrapped, gotten it wet(it went back to the curl pattern when dried), When bleached it can lighten to a #613 when done professionally.