I love ecotools, which makes amazing beauty brushes that are 100% cruelty free. Their brush heads are one of the softest that I've ever used. With my sensitive skin, the quality of the brush is a major factor. They just opened up their online store so I no longer have to hunt for them at Target, which is usually always out of stock on them.

My favorite is their 5-piece brush set ($9.99) and powder brush ($7.99). The quality of their brushes are comparable to the most expensive brands, but the best part is that they are affordable at  such reasonable prices. I've had Dior & Chanel brushes and they do not measure up to my ecotools.