Needle size to draw up Jintropin?

After you have added water to the HGH, what needle should I use to draw up the mixture into my slin needle?

I don't have my slin needles yet, but will my 25g needles fit on the slin syringe?

Thanks for any help!

usually not, depends on the manufacturer. the slin needles are usually pre-attached to the syringe. just use that one to draw it up an inject.