Gack. I ADORE Enkore. Worship at his magical feet, but the water Glycerin mix is a germ-bath waiting to happen. The minute you put water in ANYTHING you need a preservative, or it's going to grow massive amounts of stuff you do not want by your eyes. You can't see it till it's really bad, but it's there. I make mineral makeup and did a test at 24 hours for microbes and it scared me. BAD! If you make it, keep it in the fridge and make new every third day. Sounds like I'm paranoid, but these are our eyes. Oh, and used distilled water with nothing in it and put the cap on immediately.
I know, paranoia, big destroya, but I've got MS and my eyes have enough issues already.