There no glue involved, the hair is simply threaded into your hair, the method used is very simple yet effective and should lasts six to eight weeks, sometimes longer if well looked after. Our REMY Hair Extensions are designed to be re-used, again, if well looked after, we have a record of customers that have re-used up to 8 times. We highly recommend Pure Kharma pure virgn remy weave. It is known to have lasted the longest and it is best selling to our registered salons. Removal of weave is easy ,there are no chemicals involved, therefore no damage.