We use a gentle leader - our "puppy class" trainer told us that it wouldn't work with her because of the short snout, but it does.
At 12 weeks though - I would just deal with it. When Chloe was about 20 weeks, we got a modified choke collar (nylon) and that kept her from yanking too hard on the collar. We switched to a prong or pinch collar at about 8 months and switched to the gentle leader about 6 weeks ago.
By far the gentle leader has worked the best for me. We had it fitted by a trainer - and she just finished an intermediate obedience class. It was WAY better - it puts pressure on the top of the nose if they pull, making them put their head down, so they can't really get the leverage to pull on it.
I would stay away from harnesses that attach to the leash on the back because it will just give them more power to pull you with - there are harnesses that the leash attaches in the front that actually pressures the legs if they start pulling. That might be the best option at that age.
At 12 weeks though - I would just deal with it. When Chloe was about 20 weeks, we got a modified choke collar (nylon) and that kept her from yanking too hard on the collar. We switched to a prong or pinch collar at about 8 months and switched to the gentle leader about 6 weeks ago.
By far the gentle leader has worked the best for me. We had it fitted by a trainer - and she just finished an intermediate obedience class. It was WAY better - it puts pressure on the top of the nose if they pull, making them put their head down, so they can't really get the leverage to pull on it.
I would stay away from harnesses that attach to the leash on the back because it will just give them more power to pull you with - there are harnesses that the leash attaches in the front that actually pressures the legs if they start pulling. That might be the best option at that age.