I don't know what's the difference between "Full Volume Liquid Lip Color" and Volume Boost", but I have both kinds. I have Volume Boost in "Clear" (which is... clear), and "Passion", which is a mauve color I find myself using consecutively lately, and usually I don't stick to one product this long. I also have the ones labelled "Full Volume liquid lipcolor", which I got on clearance in Boots for 25QR each (original price 37 QR: 12USD ... still a bit expensive for a drugstore product), here are the shades:
* 070 Boast - brownish mauve, my lips smeared with goopy milk chocolate. A friend says it's a vampy/sexy look for nights out, but I'm not really digging the look.
* 090 Pose - mauvey MLBB, similar to Passion. Almost interchangeable I think. Possibly a deeper version of the popular Vinyl Lip in Snog.
* 060 Plump - a nude on the orange-beige side. not for my coloring but my sister loves--and looks great in--a dark eye and nude lip. (She was also the lucky recipient of my twice tested Revlon Nude Lustre l/g, which also didn't suit me.)
* 150 Tease - a rosey color. This is my second favorite next to Passion. What I was looking for when Revlon's SL l/g in Cherries in The Glow disappointed me.
* 80 Parade - vibrant red.
The minty vanilla smell of the Full Volumes are a bit nauseating until after the first few minutes, a problem which I don't have with the Volume Boosts. But at least they don't have the disgusting "off" candy-citrus smell of the Vinyl Lips, which I just can't tolerate, and is the major reason I chose the Volume Boost. Whether it plumps or not doesn't really matter to me, but maybe the bigger lips comes from the fact that the color payoff is great. I can go over a little past the edges my thin upper lip without lip liner. Not too sticky, lasts a decent amount of time. The brush applicator makes it feel so plush and luxe to apply. However, for the Clear lipgloss, I usually swipe the brush on my clean pinky finger first, then on my lips, because I hate getting any color from my lips onto the brush which goes back into the clear gloss, which will stain the entire bottle over time. Other than that: Yeah, will buy the Volume Boosts again. I like these better than the Revlon SL lip glosses.