People seem to love the BB cream So I have a few questions. Is the stuff in the big jar the same as what's in the tube? They make tubes of cream other than BB, e.g., Endymion, Opus 1870 and Castile. Do all of those perform the same as the BB. A couple of those are no longer available. So I'm guessing that the ones I see available are somewhat older, which leads me to ask whether the current formulation was changed recently or has it remained unchained for a while? And finally, if I pick up one of the ones that are out of production what are the chances the product will have deteriorated, or is it likely to be as good as ever if it's never been opened?