There are so many solutions and lotions and potions that are out there now, all with the same purpose... to wash your brushes. We all know make up brushes are a breeding ground for bacteria and not washing them can cause breakouts on your skin so it's important that they're washed thoroughly at least bi-weekly if not more often (in my case, more like bi-weekly because I never have time). However, I don't personally believe that you need to spend a fortune on a product which is specifically for washing your brushes simply because there are ordinary things that you find in your local supermarket which will do the exact same thing.
Of course, I'm talking about baby shampoo. (£1.75, Boots)
Obviously the main aim of washing brushes is to get rid of the dirt and product on them, and I figure that if Baby Shampoo does the job for a couple of quid, why spend £10 on a product that claims to be all singing and dancing and anti-bacterial this, that and the other. Yes I agree that make up artists may need something more 'industrial' in strength because their tools are used on different faces all day long. Generally my brushes are just used on my skin.
I do own the MAC brush cleanser, and I'll be honest, it's not great, I don't find that it really properly cleans my brushes, it's ok for a quick mid-week rinse but you end up losing more down the sink than you actually use on your brush, whereas Johnson's baby shampoo actually stays on your hand and gives you something to work with!!
Basically what I do is wet the brush under a running tap, then put a blob of shampoo in the palm of my hand and swirl the brush around, then kind of massage the brush. Then I put it back under the running tap, massaging the brush... repeat again and massage under running water until the water runs clear. Then place them horizontally to try... I think this is one of the most important parts; do not stand them up to dry because the water will run into the handle and can mean that the brush won't last as long as it might have!
What do you use to wash your brushes?