This one is about Auto Injectors. Add one simple like to them in Black Market  that it's "SINGLE USE" ! I was grinding that 5k crystals for  Gamma and when I've bought it turns out it's 1-use item. I have searched in a wiki prior to buying, there wasn't stated that it's not permanent. Oh yeah, updating wiki would be good too. Total Domination has the worst wiki I've seen so far, almost zero info there, or just the most obvious things.  Good thing I haven't spent real money to buy this auto injector, cause 5k crystals is around 30$ - you can buy a decent game on Steam for that money. And here you can only buy a 1 use item, and you need dozens of thosoe to upgrade your serums and put them back every time. Don't be lazy and update the desription of Auto Injectors.