Every day freshness. Deodorant protection. Deodorant/anti-perspirant. To be used with Certain Dri anti-perspirant. All day freshness every day. Certain Dri A.M. Underarm Refresher has been specially formulated as an addition to Certain Dri Anti-Perspirant to provide all day freshness every day. Its special odor control system delivers additional all day deodorant protection when used with Certain Dri Anti-Perspirant.