I like to use natural oils like avocado or moringa on my lips as it keeps them soft and has skin benefits. I could just never find a good delivery system, specifically that wasn't messy. My vision in getting these was to kind of make my own Carmex-like lip balm. It was so easy-- and ended up being very eco friendly-- I had some EOS ball lip balm which I had used down to a nub which could no longer be applied so I dug it out of there and melted it with some avocado oil and a few drops of mint oil at about a 1:3 ratio, the one part being the old lip balm. It made a perfect Carmex consistency, was easy to pour into the little vials with the funnel that comes with the kit while it was warm. And now I have exactly what I was looking for, for a very affordable price!