Liquid stevia (pyure)

I only say minus the other Ingrediant first so that you can decide how it tastes to you first before you add anything to mask a flavor… You might like it you might not… Trial and error is your friend when we play mad scientist all the time

I have some Pyure liquid that I haven’t touched for a good few months, I picked it up today and noticed some cristalization, or at least that’s what it looks like.
I’ve tried shaking it hard to see if it disolves, but it hasn’t.
Anyone experienced this?
I’m not sure I want to use it as is.