I'm assuming it's like a conventional deoderant you can use in conjunction with regular certain dry? Because 'A.M.' makes it sound like you can use it after showering and shaving, both of which are a no-no with regular certain dry ....
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To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment ~ {Ralph Waldo Emerson}
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.
WARNINGS: Do not apply to broken or irritated skin or immediately after shaving. If rash develops, discontinue use.