101 Foundation Brush.

"This is the BK Beauty 101 Foundation Brush. This is such a great foundation brush because it's got this domed shape, and the length of the hairs are tapered, so they're longer here on this side and shorter here on this side. It's very dense, but the fibers are very, very soft on this, and that is what I think makes this a perfect foundation brush. Because it's kind of shaped like the sponge, and you use it in a stippling motion, it just lays the foundation down so beautifully, and you never get any streaks with your foundation. Unlike the sponge, this lays more of the foundation onto your face, and so using a lighter weight foundation, you do get a little bit more coverage out of it."

"If you want just one brush, I recommend the BK Beauty 101, my favorite foundation brush. It is [...] so soft and luxurious and puts your foundation on perfectly every time."

"One of my all-time favorite BK Beauty brushes is the BK 101, a foundation brush. This is what I used today to put on my makeup."

"I'll apply that with the BK Beauty 101 brush. BK Beauty is Lisa J's brand, and she's literally killing it with her brushes."

"For foundation I of course brought my BK Beauty 101 Brush, and that's what I used to apply this foundation. I wear the shade 0.5 neutral."

"I have to shout out the BK Beauty 101 brush. It's become, especially recently, one of my favorite foundation brushes. It's what I used today to blend out my foundation, it's so nice."