We would recommend trying our 15ml Tester Pots on an inconspicuous area of your wood, if possible.  For example, the inside of a chair leg or the underneath of a table. You can then wipe it over with a damp cloth when dry to simulate how it would look with a finish on it. However, if you do not have an inconspicuous area to test the dye, you can sand the test area to remove the dye afterwards, or cover it with another wood dye.