When you don't have...

...a guinea pig, your own emaciated freckled self will have to do, I suppose. XD Sasha is such a dumb-@$$...

While he may be a decent scientist, there some fields he succeeds in more than others. Injections aren't one of those fields.

As you can see, he's injected himself quite a few times without any real change to himself, probably meaning they didn't work. XD In fact, once he injects that new one, he'll probably be reeling in the floor...

He doesn't want anyone to know this though, he wants you to get out! LOL, Dexter reference...