Doubtful about some reviews....soooo tried and loved! Made sure it was completely dry before applying Grandiose. Outstanding results! Grandiose became more, well, Grandiose!

I love this product! I needed some time to get used to it tho. In the beginning I was a bit disappointed but now I cant imagine putting mascara on without this primer. It gives my lashes volume and I ...

Wow! Lancome is my favorite company for skincare...and, I am quite fond of their mascara. But...and a huge but...this is one gimmicky product that I should have just not spent the money on. Actually, ...

It is a good producto, and it does make my eyelashes loongerr, than regular, but it is more expensive than it should be ($42 dls) is a lot for just a primer. I believe you can get the same results, w...

Love this product. I used to use the Cils Booster, but much prefer the Oscillation version. It separates my lashes perfectly prior to applying mascara. I have been using it for over a year now and ...

I have to agree with the low ratings for this product. No matter how lightly I apply it, even to the extent of wiping excess product off the brush before use (resulting in total waste, of course), it...

Wow, did I get sucked in with this one (hangs head in shame). I am not a fan of mascara primers/bases as a general rule – the only one I ever used, albeit briefly, was the one time I tried L’Oreal Bea...

This is horrible! I got it as a freebie awhile back and only got to writing a review now, but I am so glad I didn't pay for it. It doesn't really add any extra volume/length to my mascara, or at lea...

Lancome's "Oscillation Powerbooster Primer" does its job of priming lashes but not in a spectacular sense. It lengthens the lashes and separates them quite evenly, so it's not a bad primer. However, f...

Definitely makes the lashes look bigger and longer. Wand has a good shape and I enjoyed the oscillation. Too much product comes out and since the product is white you need lots of mascara (too much so...