If I use the "wrong" brand or no shampoo and conditioner, I'll get terrible dandruff that can even lead to it mixed with dried blood. If I use Aveeno brand sha

If I use the "wrong" brand or no shampoo and conditioner, I'll get terrible dandruff that can even lead to it mixed with dried blood. If I use Aveeno brand shampoo and conditioner, this never happens, ever. Not a single white flake. Nothing else has done it. Totally brand loyal and that stuff isn't cheap, nor is it advertised as a dandruff product