ForumsThe RegimenThe RegimenRegimen Bp Expirati... Notifications Clear all Regimen Bp Expiration? Solis 1 MemberMember1(@solis1) Posted : 10/21/2014 2:49 pm I want to start using the Benzoyl peroxide from the regimen again but the tube I have has been sitting in my room for about 8 months can I still use it? I don't see an expiration date on it. Quotebrandolynn MemberMember38(@brandolynn) Posted : 10/22/2014 9:11 am The expiration is on the crimp of the tube or bottom of the bottle. Here's more information. http://store.acne.org/additional-support/ Quote