I am sensitive to glycerin, aloe vera and Vit E, so I was hesitant to try this waterline eyeliner pencil, but took the plunge anyway. I've been using this for a few months now and the only thing I've noticed is that my old lady eyes are slightly aware of the foreign material along my upper waterline (I don't line the lower lid, just the upper), but after the first 30 minutes or so it all settles into acceptance and we're fine for the rest of the day. I don't have to reapply, although it is a touch lighter in color by the end of the day it's not enough for me to fuss with. I switched from trying to line my lash-line - and now that my eyelids are wrinkled, it's a huge challenge to get a smooth line along the lashes - to lining the waterline of the upper lid. Game changer! It's quick and easy. I don't try to flip the lid, or pull it out, just gently rub the liner on the upper waterline from the outer corner to the center while looking a bit sideways at the mirror, then switch to looking from the other side so I can go from inner corner to mid-lid from the other side, and it helps if you have a mirror held low (below the chin). (Hard to explain!) Repeat for other eye (obviously). I saw a U-Tube video on this one-handed technique, and I immediately adopted it. My eyes aren't irritated by the ingredients, and it stays on all day. I purchased the green color. One for my makeup tray and one for my travel bag. Love!