Two faced lip injection extreme
GrandeLips Hydrating lip plumper
Buxom
Dior Lip maximizer
Two faced extreme works quite well but it stings a bit. Also be careful, if you kiss anyone on the cheek, it will leave red welts for a few minutes.
GrandeLips and Buxom both work well with no stinging.
Dior Lip Maximizer is nice but really more of a gloss than a plumper. I find it the least effective of the four.