This will be the case for all and any sources.
No source knows how old the raws are -- they are inert chemicals and most likely may be many years old for any manufacturer purchasing the bulk raws.
The AAS sources do not synthesize the chemicals; all a steroid source does is sterilize things and add already made compounds to a carrier and filter.
Just think how much worse the situation may be for the small UGLs that have to shop around for an underground raws supplier.
Smaller sources literally have to deal with shopping for raws just like you are shopping for their finished products.
Think of what adding more middle-men in the chain does...
and, do you really think some of those middle-men dealing smuggled raws on the darkweb care about the purity and age etc?
So even if the end-source is a great guy and really cares, he is at the mercy of his raw supplier who get stuff from some other supplier who gets it from someone else etc, all the way up to some guy, likely in Asia, stealing/smuggling or selling factory "seconds" (the impure rejects after the first run batches) on the black-market.
At least with the big sources they have a more direct supply chain and better chance of fresher and higher quality raws.
I worked in lab, I know there is no way the source can know the age of the raws -- all a source can know is what the guy before him wrote on a label.
So my position is that no source can state an actual date anything expires because they have no way to know the age of the compounds.
But like I said before, at least if the source is big and reputable, they have a more direct raw supply with less middle-men, and the raws supplier does not want to do them dirty because a good business relationship means a lot of sales for the raws supplier.
No matter what source anyone chooses, these are the cold hard facts of life.
It is a free-market so we all have freedom to choose and freedom to endure risks of our choices -- that is how freedom works.
Illegal drug manufacture, trafficking, import.export, and use is not an easy game to play (go watch some old episodes of Miami Vice if you do not understand that this is a little different thane buying vitamins and fish-oil off amazon
-- but, actually, even the OTC supplement industry also is not an easy situation to navigate because of some of these same realities such as having no way to know how old a raw is or how it was handled, maybe the tuck sat in the heat for a few days ruining the substances etc).
All you can do is do your research and make the most informed choices possible.
In the end, if you do AAS, you will have to buy it somewhere and I'm just being brutally realistic.
How will you know with another source that their label are accurate?
How did that other source know the true age of all the compounds without any chance of error or deceit?
When you find that magical unicorn, i encourage you to shop there -- and, please PM me so I can try them too.
If you are going to use AAS, you will have to buy them from someone, or make them (in which case you are at the mercy of some raw dealer -- no different).
For myself, Basicstero has been go to me for many years now and they are the best I can find (I used to have another great sources but they closed down, and I do still use two others for some things Basicstero does not carry).
So just compare all the sources, weigh the risk vs reward, and shop where you feel most confident -- that is all any of us can do.
We all want the same thing -- Be safe bro and I wish you the best