I love eyebrow sealer and with such light eyebrows and red hair, I need it. I’ve tried another brand, however, and found the brush to be much better. Both the length of the brush and the length of the bristles are too long on MAC’s sealer. I find that because of this fact, MAC’s sealer pulls too much liquid onto the brush, thus causing a messier application. The brand I tried had one long bristle side and one short bristle side on a shorter brush which aided in properly sealing the thinner parts of my eyebrows without clumping and more intricacy. I am a huge fan of MAC products and wonder if such improvements could be made so I can remain a customer for ALL my make-up needs.