Common sense says that for an unopened bottle, there is no risk. Except that, personally, I don’t know what, if anything, leaches out of the plastic. The thing to remember about expiration dates is not “It’s unsafe” but rather “we don’t have any data whatsoever to prove that it is safe” . No one has tested it, and there is neither a legal or (IMHO) ethical requirement to do so. These sorts of things are usually on the scale of years. Use it, or lose it, as they say!
I have personally worked on a product, DrugA (at the time, only in initial clinical trials) that broke down into DrugB which had different enough pharmacological action that it wouldn’t and couldn’t treat the symptoms/illness that DrugA was trying to treat. The trick was getting a formulation with a long enough shelf life to treat the intended illness. I left the company and don’t know how it worked out, but it was perceived as a rather extreme, last-ditch effort to recoup on a butt-load of research and investment money. I think more than one research paper was written regarding the sensitivity and potential of DrugA.
The FDA/HPFBI/[equivalents in other countries] tend to be rather conservative in these things. The rule of science applies: PROVE IT. Without data, it’s very difficult to get approbation on a new drug, but it’s very hard to separate the data from environmental factors in clinical trials. The cliché of “better safe than sorry” applies (at least as a motivation for you average pharma company workforce). The restrictions may be too severe, but when people start ignoring them and taking drugs against what is indicated (e.g. crushing/scoring them, taking them at a frequency not recommended/with alcohol/[with contraindicated drugs]. etc), the fact remains that there is no data to support what they are doing. It might be safe but no one knows if it is. No one has looked, no one has tested it, an no one ever will.
I don’t know what Borden’s skin cream is, and despite such an exciting Friday night that I’m responding to this post, I don’t care to look it up.
As for isopropyl (rubbing) alcohol, MSDS documentation tends to refer to more-or-less pure isopropyl alcohol rather than what you have at home which is likely in the 70% range. Skin irritation can occur; I’d invite you to ask one of my former co-workers if this wasn’t a public internet message board! MSDS lists the worse that can happen, so that if such symptoms occur, you can react appropriately. It is a worst-case-scenario approach. It is far from perfect, because for most substances, we don’t even know what they can do to the body, but the point of an MSDS is to list what we know, so that you can prepare for the worst. These are chemicals. They fuck with your body. I’d rather be informed of that than to be surprised by it.
Companies get fined/shut down pretty often. If what the OP claims is true, it goes against everything I’ve seen, learned and been taught at the companies I have worked for. It is illegal - flat out against federal criminal law - in Canada and in the USA (to my knowledge). Probably elsewhere as well.
I can’t believe people who think expiration dates are insignificant. These are chemicals, medicine, whose sole purpose is to change how the body is behaving. That’s what drugs do. Is it really a surprise that putting this stuff into your body might have weird results? Is it really a surprise that with time, exposure to sunlight/heat/cold/acids/bases/light/etc chemical reactions might occur and these drugs might degrade? Is it really a surprise that the degradation products might have a significant pharmacological effects? Fuck the money-making side of it; it is irrelevant to this discussion. CHEMISTRY HAPPENS. And it can fuck you up. Why take that chance?
I worked in the industry. I know, from a university degree and work experience and the multitude of science available that drugs can minimize symptoms of a disease, or even cure one. But side effects, taking drugs against indication, taking drugs with contraindicated substances, expired and degraded drugs etc can kill you, or cause severe side effects, or at the least leave you no better off than without the drug.
Fuck the money. It’s not about the fucking money.
It’s about your health.
Think about what you are consuming. Think about the fact that there is likely at least a decade of scientific data behind the instructions
on the drug packaging, and that that data has been scientifically proven, even it if it’s within a rather narrow window. Companies don’t want to hurt you because that will hurt the bottom line. Look at Merck, and Vioxx, which had to be pulled because (in essence) it was being used so frequently off-label that more people than expected had side effects. It’s a valid drug*; the media killed it.
But chemistry happens and some things are unpredictable. Why add more unknowns to that? To save a few bucks? Revisit your priorities.
*and no, I have never worked for Merck