My Brush Cleaning Products/Routine:
When cleaning my makeup brushes I used to use unscented baby shampoo, which is a perfectly fine product to use. I then recently started using Dr. Bronner's Castille Soap, and I don't know why I haven't used it sooner.
We use this soap for everything in our house: all purpose cleaner, deck wash, hand soap, body wash and now for my makeup brushes. The soaps come in a variety of scents but I go for the Baby Mild soap because it is unscented. I recommend going for the unscented soaps no matter what cleaner you decide to use just in case any of your clients have an allergy/sensitivity to a certain scent.
Makeup brushes can be cleaned as often as you'd like, but I recommend at least once a week. If you have a day when you have multiple clients a quick clean is of course a must between faces. And once again i will recommend doing a hard clean at the end of the day. (You should reward yourself with a nice bath too!)
When cleaning have the water temperature lukewarm. Too cold is too harsh and so is too hot, plus if the water is too hot it would mess with the glue on the brush (don't want that!)
I got the Sigma Brush Cleaning Mat for Christmas (best tool ever!) however if you don't have this or something like it then you can always use your hands.
First step is to wet the brush. Take some cleaner/soap and either apply to the brush or the palm of your hand. Swirl the brush into the palm of your hand, and make sure you really get to the core of that brush you are NOT going to ruin it! Once you have swirled it around for a few seconds rinse and make sure all that soap is gone. Then gently squeeze out excess water (you can reshape the brushes too if you'd like) and place on a clean towel to air dry. Get the next brush and repeat.
Brush cleaning is so important! Not only will it be better for application without excess produce on it but it is for safety! I'm sure you wouldn't like it if someone used dirty brushes on you! (Don't want to get something like pink eye!) There have been all kinds of horror stories from artists using dirty brushes on people, don't be the cause of someone (or your own) horror story. It's tedious and a little time consuming but I can't stress how important it is. So be a good person and clean those brushes! XO