Are the formulas still the same or not? I did a search on it because I'm running out of my pre-mass retail keraphix and botanoil and wanted to know if it is safe to buy the non-salon ones. From what I found in the search I thought it was still the same, but now I'm reading comments that make it seem like nexxus isn't what it used to be. So which one is it, same or different? And if different what are good replacements? Thanks!