This is a very handy product with a nice design (for a foundation pump!) but the reason why I give it 4 lippies not 5 is the fact that it does not fit my Revlon Colorstay foundation bottle (I have another foundation without a pump lying around somewhere, I'll update if I manage to find it and try the MAC pump on it.)
Yes, I know that obviously the MAC pump is not made for the Revlon bottle, but I still can't help but wish that it would fit it because that was my main reason for purchasing. Otherwise I could've just put my Colorstay in any old empty foundation bottle, and not necessarily like the reviewer below says, buy the pump for a MAC foundation and then when that one finishes, transfer the Revlon into it...

I've had the same pump for about 4 years. Instead of back to mac'ing my old MAC foundation bottle, I transfer my Revlon color stay foundation to it. This pump makes a big difference because it dispenses the right amount of product. Definitely overpriced but works...and for the convenience, it is worth the money. Turning foundation bottles upside down and gauging how much product is coming out is the least of my concerns in the morning rush to get out of the house.

Should a pump be included in MAC and Revlon foundations? Sure! But since they are not included and I like using their products, I paid $6 for it and re-use it for years to come.

I bought this because I use Covergirl Clean Foundation as well as NYC Smooth skin foundation and both are so thick i can't get them out of the bottle, but this product works just like it was made for those bottles. I think the price could be lower (it cost more than my foundation) but at least it works.

MAC and all of these other brands should make their products already with a pump!! If maybelline and other cheap brands do it why can't they??
Next thing you'll need to buy the lid separately too!

i use this for my estee lauder double wear, it fits and works perfectly. it dispenses a great amount of product.

$7 is way overprices for a piece of plastic though... wish it was cheaper. but im so glad mac sells this.

i do think its ridiculous how mac makes foundations with out a pump and you have to buy it seperatley, but im not much of a fan of mac foundations anyways.

Does what it's supposed to do, and you'd be avoiding all the messes and worry of wasting product after buying this. It's a little pricey but you're paying the cost of convenience.

Brilliant value and brilliant pump.
Makes foundation last longer and just reuse!

i love this for my mac's studio fix fluid. BUT WHAT OTHER FOUNDATIONS DO THIS PUMP FIT ? CONTACT ME WHIT ANY FOUNDATION BRAND ; HIGH END OR DRUG STORE THANKSS EVERYONE

I use this great pump on my drugstore foundation! It makes my makeup application much more convenient and less messy. Glad the girl on YouTube suggested it!

i dont see why they have the pump come along with the bottle and for 3 quid. but of a bump for a bit of plastic that should come with the foundation... but apart from that all is good. its just a pump.