Wella, and I blame it on my time spent apprenticing at Vidal Sassoon, where we were required to learn the entire product line. And with that said, I do have my favorites- which happen to be the Power Mask (which I mentioned here and here), Hydro Mask and Ends Express.
The Hydro Mask is recommended for dry hair - no matter the hair type. I've personally witnessed the results this mask delivers, and can't praise it enough! I would suggest using it with heat (hooded hair dryer) and a plastic cap for an even deeper conditioning treatment.
Ends Express is great for those with dry/damaged ends (actually midshaft of the hair to the ends). It works to seal the cuticle, and the result of course is smooth and shiny hair. A little goes a long way, so I'm suggesting using it at night and waking up to soft, sealed ends.
Have you tried, or are you using any Wella products?
Disclosure: Products in this post were provided for consideration by the company. For more information, please see my disclosure.