First of all, the Gentle Leader Headcollar is NOT a muzzle. When fitted properly, your dog is free to open his mouth to eat, drink, pant, fetch, bark and even bite – except when you close his mouth by pulling on the lead.
The Gentle Leader Headcollar features two soft nylon straps – the collar portion fits high at the top of the neck, and the nose loop fits loosely and comfortably across the base of the muzzle. Each strap has a distinct and important effect
The Nose loop:
The Gentle Leaders patented Nose Strap applies gentle pressure in the same way a dogs pack leader would grasp a sub-ordinates muzzle. Your dog learns in his own language that you are the leader.
Puppies will melt in relaxation when their mother picks them up at the back of the neck. Gentle Leader uses this pressure point to work with your dogs natural relaxation instinct. With this gentle pressure at the back of the neck the dog pulls backward not forward which corrects lead-pulling forever.