To be perfectly honest, I’m not exactly the poster girl for keeping my makeup brushes squeaky clean (permission to judge!). I know better. However, when I do get around to washing them, I like to use a sulfate-free cleanser. I use a sulfate-free shampoo for my hair, so the same logic applies for my natural-fiber makeup brushes. I like Trader Joe’s Tea Tree Tingle shampoo because of the zingy, peppermint scent and gentle formula. Dr. Bronner’s also makes a great castile cleanser that would work well.
Squeeze a generous amount of sulfate-free cleanser into your palm and wet the brush. Lather the brush in your palm, agitating the cleanser. Rinse under warm water. If you go as long between brush washings as I do, you may have to repeat this step two or more times. Repeat as many times as needed until the water runs clear when you rinse the brush. Lay flat on a towel to dry. Do not stand upright to dry because the water will pool in the ferrules and dissolve the glue.
That’s it! Sparkling clean brushes and clear complexion to boot! ;)
P.S. My favorite makeup brushes are by Real Techniques. They’re super durable, really high quality, and so affordable.