Lancome Cils Booster XL ($21.50) This innovative mascara base maximizes the result of any Lancome mascara. Features micro-fibers for enhanced effect; triangular brush helps separate lashes.
Honestly, I found this rather useless. I know a lot of people rave about this, but it did not really do much for my lashes. I noticed my lashes did get a tad bit longer, but I could accomplish that with just mascara. I have to admit, out of all the mascara bases, this one performed the best.