I just made this lip gloss recipe but used lip safe mica instead of the liquid colorant. The last time I made this recipe I used half glass roll on bottles and half plastic gloss bottles with a wand. This time around I just used glass roll on bottles. Having the two to compare last time, the colors stay truer in the plastic bottles and muddle in the glass ones. For this batch it doesn't really matter, but I was wondering if there is something in mica that likes to cling to glass and mess with the lava effect or if I simply could have added too much mica. Anyone have any thoughts? For reference the first pic is from immediately after I assembled the bottles and the second is the one I'm keeping for myself.