Use just any conditioner (for dogs), put a little bit (not much) on the hairs that are going into the eyes.
Thats what I did
Works well ! I do this every day right now, I'm growing out Fido's nose hairs too !
The conditioner also makes the coat grow a little bit faster I think, I put once a day conditioner on his topknot also and I think it helps the coat, I also spray it over the bodycoat ! just everywhere, cause I want him with longer more beautiful coat
Well I don't use just pure conditioner, I mix about 1 part conditioner against 2 part water, put it in a little spray bottle and spray over the coat, I also use that mixture if I wrap him (only part that I wrap on Fido is his topknot, when its long enough I wrap it, and when his bodycoat will get long enough I'll wrap it too).
Good luck !! This is fast to grow out, DON'T CUT !! :P