There are certain products that within the blogging world have developed a cult status, from Charlotte Tilbury Lipsticks to the Hourglass Ambient Lighting Palette, and one of them from across the pond is the Beauty Blender. I've wanted the original Beauty Blender for a couple of years when I received it as a free re-subscription gift with a Birchbox subscription last year - very lucky, I know!
The Original Beauty Blender (£16) is basically an overpriced egg shaped foundation sponge but since celebrities and makeup artists were seen using it, it has become a must have for an airbrushed foundation finish. Before receiving the genuine Beauty Blender, I used the Cosmopolitan version and also the Real Techniques foundation sponge, the latter I'm not a fan of. 
To use the Beauty Blender, I just soak it in warm water and squeeze out the excess with a towel; I've used it with most of my foundations (and I have quite a few) and it is pretty good sadly as it's also pretty pricey. I particularly love this foundation sponge as I do have eczema which shows up on me as intense dryness and flakiness which if you have it, you will know how difficult it is to apply foundation over - it can end up looking SO cakey, patchy and flaky. 
I haven't used the sponge with cream foundations but I've used it with a range of liquid and mousse foundations such as the Essence Soft Touch Mousse Makeup, The Body Shop Moisture Foundation, Revlon ColorStay, Becca Radiant Skin Satin Finish Foundation and many others and it works so well in terms of application and blending. 
Overall, although the original Beauty Blender is very pricey in my opinion for what it is, I think it is worth it especially if you have dry or very dry skin. It works with pretty much all of my foundations. It does need more cleaning but the soap that came with mine is great; I don't think I will have to replace mine just yet but I'm not looking forward to the day when I do! If it's out of your price range or you simply don't want to pay that from for a foundation sponge, then the Cosmopolitan Blend Perfection Sponge is fantastic - if you can find it as it may have been discontinued. 
- Heather