Hi ya

My experiences when colouring its all trail and error really. so i colour my piece and my own hair every 6 weeks i make sure i use knot sealer one coat 2 weeks prior to colouring as i de-bond every 2 weeks.

When colouring i use Vaseline for extra protection only on the crown area as that is where i mostly show scalp.

what are you using to colour?

I use wella colour charm 4A Medium Ash Brown, wella 050 cooling violet drabber to tone down the red and wella Creme 20 Volume. mix these in the correct quantities in a bowl add around 6oz of hot water then i just dip my piece in the bowl work it through the hair take it out and leave for no more then 2 minutes then i apply the rest to my own hair for 20 min which i find works well for me.