This is mostly the same thing with other cryptobiotic states as well, like in organisms that can survive complete desiccation. Often the key chemical preservative there is actually a sugar called trehalose iirc, which at sufficiently high concentrations helps to keep cellular structures intact even in the near-complete absence of moisture, such that the inner processes of the cells are basically “frozen in time” when they dry out, and therefore able to spring back to life once they’re rehydrated.

Again, this only really works with small organisms below a certain level of anatomical complexity, and I’m sure there are certain cell or tissue types that just don’t respond well to this kind of preservation, but apparently it’s part of what allows tardigrades to enter their famously nigh-indestructible “tun” state, and is also found as an adaptation in some desert-dwelling insects, and the eggs of a number of aquatic creatures that have evolved to weather extended periods of desiccation (sometimes very extended; brine shrimp eggs from literally thousands of years ago dug up in the Bonneville Salt Flats of Utah have been found to still be viable).

Even though there are several reasons it probably would never be suitable for allowing an entire human to be basically mummified and then brought back to life, trehalose has seen a lot of use as a preservative for blood or tissue samples, making it so they can be completely dried out and then reconstituted as needed (like apparently dried blood samples preserved with trehalose will even retain the distinctive vivid red of fresh oxygenated blood, rather than the dull rusty brown we usually associate with old, heavily-oxidized, dried blood).