Kelly I think that's kind of the nature of the beast with Yorkies, just like people products, you use them for a while, then decide to try something else. If you're like me, you either have a closet full of half bottles, or a shower with a selection, LOL
I can't tell you how many different shampoos/conditioners/detanglers/oils/shine products, etc. I have, it's probably disgusting to some, LOL...but I find if I use something for a while, it isn't long til I go looking for something else, and voila, there it is waiting for me to pick back up and use again, so eventually almost everything gets used...unless I just truely hated it, then it's just collecting dust..lol
Pixie will thicken up as she matures. One of mine had the most sparse coat as a puppy..just twigs really.. and now she has the fastest growing, thickest, best texture coat of all of my dogs at almost 3 years old. I actually shaved her down as a "teenager" to grow her back out, and it really worked to thicken up the coat, she is on the ground now, and I have to keep it cut back to floor level or she trips!
You would have called me a liar if you'd seen her at as a kiddo.