I bought my brush a year ago, but only started using it recently. All was fine until I washed it - now the brush loses bristles whenever I use it and if I gently pull, hair comes out in clumps. I wash all of my brushes the same way, and have done so for years: this is by using a very small amount of Aveda shampoo and very gently pressing the bristles with a little water. I then press or tap the bristles gently with a paper towel to dry it. Disappointed to find that Laura Mercier does not provide any guarantee for brushes. Will choose a better quality in future.