Lip blushing? Anyone?

I’ve been wanting to add some volume to my lips for quite some time but never got around to do it. I came across a announcement from a local place who is promoting lip blushing and lip fillers. So from what I was told, lip blushing give color to lips with somewhat volume and usually last up to 3 years and ofcourse lip fillers adds volume but only lasts up to 6 months? Both are around same price.

I really want to add volume to my lips. Which do you recommend?