Your question just made me realize what was different between both formulas. I couldn't put my finger on it! And you said it...The Wash And Go!
I was a devoted fan of the Original QOD MAX, mainly for the main reasons you stated. I could wash and let my hair air dry and my hair was super soft, manageable, and SUPER shiny...and for moths!
So I was told Kerapremium was the same formula under a new name. So I purchased the Big bottle.
I did everything as I normally do when I do my treatment. But I realize with KeraPremium I can't wash and go!
I already did the treatment 3 times, and I can't get the results I did with the Original QOD MAX. The wash and go factor is gone after the second wash.
I am still happy with the KeraPremium, maybe because I know that out of so many brands out there, this one is one of the bests. After I style it, the hair stays gorgeous. But is lacking that Super gloss QOD Max used to give, and the long lasting Wash and go factor.But I would love to find the one brand that will give me the exact results that the Original QOD Max used to give me. I am still on the hunt!