How to install Photoshop Brushes
This Tutorial is is going to teach you the very easiest way to install Photoshop Brushes on Mac OS X computers. This method utilizes shortcuts that will make installing your new Photoshop Brush much faster than the usual method of clicking through all of your folders. So let’s skip the small talk and get right to it.
Once you have downloaded your new Photoshop Brush, simply hold your “Command” key and click on the Photoshop icon on your dock. You will notice that you will be immediately taken to the applications folder in your Finder with your app selected.
Once you are there, select or open the “Presets” folder.