O Wow Brush
You've got to be bold to call a product 'O Wow', but these guys are spot on: that was our reaction from the moment we first applied foundation using this. Yes, it looks like a toothbrush - but the resuls are utterly flawless (and that's not a phrase we use lightly, NB).
The how-to is like this: squirt/squeeze foundation onto the back of your hand, and pick the product up with the velvet-soft bristles. Then work into skin: the foundation goes on more smoothly than with any foundation brush we've ever used, and delivers - hand on heart - an air-brushed finish. You can layer on more foundation but somehow, we find we're using less - to better result.
No streaks, no blending with a finger: this little baby does the lot, and is just so incredibly easy to use. Frankly, all our other brushes (even the really, really expensive ones) have gone in the bin - though you might want to get more than one, as it also works with blusher (and you want to keep that brush separate).
We have just two words. 'Oh, wow.'