I've gone through several of my Covergirl lipslicks... although I still have 1 or 2 floating around here with just a bit left that I'll just keep on my dresser for a quick app. in the AM before I run out the door. My new one is always in my bag. I've been using this for awhile... so I'm always going through whole tubes.
2 years ago, i was on a "use it up" challenge & actually finished a L'Oreal lipgloss. it forced myself to keep it in my pocket & constantly reapplied throughout the day. it took about 2 weeks before it was completely gone & a crowing moment for me.
of course, i haven't done it since, but another challenge could change that.
I don't use lipglosses much but i have used up 1 lipstick & it took about 4 months of applying it every day. It was L'Oreal Shine Delice in Coffee Blast. It was a HG for me but those silly people over at L'Oreal have decided to discontinue it
I almost finished a Revlon lipgloss, but it was discontinued before I could finish it, so I have been preserving it. However that has recently changed since I found an exact dupe of the color in a Prestige lipgloss.
i`ve finished one of my AVON glazewear glosses as well. but i`m addicted to CarMex lip balm. (the one you can squeeze out of the tube) i think i`m on my 5th tube. i`ve lost count. it makes my lips incredibly soft and smooth.
I've finished several glosses, especially my staples such as; Maybelline lippolish in nude flash, nuetrogena moisturshine in glimmer, and L'Oreal glam shines when they were still around. Oh when I was in 9th and 10th grade I was known for finishing up those rolly glosses within a month. Now I'm that way with mascara.