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Cut Hair with Background Erase Tool
Select the Background Erase Tool
Select the options below, the tolerance depends on each photo.
this technique to cut hair, works only for clean backgrounds and with a single color.
see some examples below:
Brush Tips
My Brush tips, are Brush present in Photoshop CC.
I usually use brush present in photoshop to do my hair, specifically these two:
Brush > Soft Round Pressure Size or Flat Angle Low Bristle Count.
and always before starting to paint hair, select Pen Pressure on the brush configurations.
Simple Tips - How to Paint the Hair
I use wacom to do my hair, so the