Instruct: Classify Amazon reviews into positive or negative sentiment
Query: detangles ok but is harsh on the scalp

the bristles on this brush are extremely harsh, if you run it along your arm, for instance, using moderate pressure, slightly raised, red welts will appear. i really don't want to be causing abrasions to my scalp, as that can lead to dandruff. gross. also, the brush detangles well..to a point. when i use it closer to the roots of my hair, it really does not work at all.