Webfor deodorants, it is typically around 6 months to a year. A golden rule to remember: If you're in doubt about the freshness of your deodorant, especially if it looks. For ten years, it’s kept me free of odor for 72 hours, even in peak summer. Webdon’t store deodorant in the bathroom due to temperature fluctuations and high humidity. While deodorants aren’t required to display an. Websome dermatologists don't necessarily recommend natural options, but kopelman suggests these deodorants may be a good choice if you prefer to avoid. Webthe answer is yes and no. While the active ingredients in deodorant can remain potent for longer than the expiration date, the product’s effectiveness may. Webdo we really need deodorant ‘down there’?