When it comes to blending/crease Brushes their are about 116516303065 choices! Most people use a Sigma E40 or a MAC 217 Brush. I can honestly say out of all the brushes I own I have never gotten my hands on these two. With that being said I cannot talk about how these may work BUT I can talk about two of my highly underrated and unspoken of blending brushes.
First is the Aveda Flax Sticks #6 Eye Contour Brush. It is densely packed, 100% taklon fiber, and blends like a dream! The density of the brush really packs the color into the crease area and prevents fallout. The tapered design helps to blend out any harsh edges. I mainly use this one when I want a ton of color in the crease, like for a dramatic look.
XOXO - Angel Lee ❤