"pH changes causes swelling and release of drug Change in concentration of ions inside that causes swelling and release of drug"

I go for the liquids because you can get just as high quality for a better price. I use a top source and he guarantees his stuff is good for a year with a no questions asked money back guarantee except caber. Caber he only guarantees for 6 months. Now pills definitely keep longer if stored correctly. Stored in sealed moisture free package out of direct light. Unlike gear which will hold it potency for a few years and is illegal. Gear is much easier to stock pile. It is not illegal to purchase research products that are not intended for human consumption lol it's best to buy these at the start of your cycle because let's face it you need to have everything you need on hand because anything could happen. You are probably not going to run a 6 month cycle even if you include the 4+- weeks PCT depending on your cycle vs PCT needs. So for me I go with the liquids even though most are horrible tasting. If you don't mind spending a few extra bucks go with the pills. Also pill splitting sucks. Liquid you can draw exactly the amount you need every time provided you shake the hell out of the bottle. There are pro and cons to both but alway and I mean always buy everything you need before you start your cycle. Only buy the necessary amount needed for the cycle you are running so you don't have to worry about carry over. Although it doesn't hurt to have a little extra just in case. I chuck that shit in the trash and buy new for each cycle. It's really not worth the risk to carry over. If you do it this way there shouldn't ever be a worry about the potency degrading on you. Hope this helps!

I do not have a direct answer to hour question myself, but I can tell you about my research findings.
First off, I have experimented with both tablet and liquid suspension AI's and was fortunate to have obtained legit products from both. IMO its really a crap shoot when dealing with research chemicals weather they are of tablet or liquid form.
I asked one of the top peptite scr's here what the shelf life of their product was and I was told 3-6 months, once opened it will begin to lose potency after 30 days. ( Again, this was explained from one of the top scr,'s here )
There are plenty of scr's here offering pharma grade that are nice hard pressed tabs that if stored correctly, will outlast liquid suspension. It's comforting knowing that I don't have to shake the crap out of a jar just to remix its chemical structure.
Just my opinion.

Pills will last much longer

Liquid serms usually lose there potency in 6 mos