Prevent skin & scalp irritation, burning, itching, chemical burn &  allergic reactions. STB, Stop the Burn, is a conditioning agent that alleviates the hair and scalp from the effects of harsh chemical processes. The active ingredient is menthol which provides a soothing sensation that helps relieve irritation. STB is a great at home treatment for itchy scalp, irritation, burning, or any effects from chemical hair treatment.