Hi Lee,
Just so all the readers understand what we're tailing about--a full head bond is when the entire unit is covered with tape/glue as opposed to just adhering around the perimeter. And a full cap is a unit that covers the entire head versus a topper unit that covers only the top of the head (customer has his own hair on the back and sides). The pros of a full head bond are obviously a super strong bond. The cons are 1. longer clean up time, 2. possible itchy scalp (since the the bond will last longer), and 3. longer time to attach. Attaching for a long time has it's downside--many people feel it is not sanitary to bond for a long time. Hair Club does this with super strong glue/tape, known as a hard bond, it can last for 4-6 weeks--enough time to get you to the next scheduled maintenance appointment with them. People report 'itchy' scalps. Hair Club counters this by selling you a bottle of an enzyme called 'Alive' which cleans up the dead skin on your scalp. We believe it's better to bond for 1-2 weeks at a time then remove, clean your scalp, and re-attach. It's more work but it's also more comfortable and more sanitary. We also recommend that you test out a tape or glue before you bond on a small patch of your skin if you feel your skin is sensitive. Reactions or rashes are matter of personal skin sensitivity.
Regards,
John
http://toplace.com