Not much of the product comes off on the brush. Doesn't make much of a difference on the lashes.Love itHorrible!! I would not recommend this to anyone. It is extremely hard to put on, it clumps up like crazy. It gave me awful spider lashes and it starts to come off with any humidity! I wore it for only a few hours and ended up with racoon eyes! I used it a couple of times and had to throw it out.A good productDried outLove!This was supposed to be one of those great and wonderful drugstore finds. I purchased mine I believe at Wal-Mart on a general grocery store run.This mascara was a nightmare for me. It was clumpy from the time I opened it. The application took longer than usual to avoid clumping. The product is buildable and it took about three coats for it to be visible on my eyelashes.If the end result was amazing, I could have lived with those flaws. However, the end result was ALWAYS the mascara either wearing off completely OR running down my face. Either way, not the results I want.This stuff is garbage. I could barely get any of the mascara to stay on my lashes and I worked at it a long time. I am not sure if it is the brush or the product, but I am guessing both. If I were you I would save my money and buy a different product.