Task Essential Lip Ace O2 Lip Treatment, 0.34 Fl Oz

This is admittedly quite pricy for what is essentially chapstick, but it lasts a very long time, so I suppose it's a decent 'investment.' (I've been using it regularly for over six months and there's still more than half a tube left.) A little bit goes a long way and it keeps my lips moisturized for an hour or two before I need to reapply. It has a faint vanilla flavor that is pleasant but not overpowering.