This will further loosen dead hairs and bring them to the surface of the coat. (mypetneedsthat.com)
Warm water, as well as the skin massage that comes with a bath, helps to loosen the dead hair so it will fall out more easily. (germanshepherdcentral.net)
A gentle glide across their coat will help loosen dead hairs from their skin. (allaboutfrenchies.com)