To perform staining with mouse antibody on mouse tissue I used the M.O.M kit from vectorLab, and I have to say I had a wonderful staining. However, recently I order the same kit, and didn’t perform as used to be. I tried to troubleshoot the problem by using all the samples that I know they are positive in vain. I am very disappointed with vectorLab customer service. I lost a lot of time trying to get this to work again. Thanks. Aicha