Just started on Spectral DNC this week, gave up with the nozzle after 2 days and use the applicator from my Kirkland bottles, much better. Too early to make comments on how good it is, but like you I've read many great claims by the manufacturer, and good reports from users. I'm applying it once a day at the moment along with one dose of Kirkland, which I have been using for about 18 months, with great results. I will see how it goes, and maybe switch to Spectral only, or try the foam with it. On the good side so far I have reduced flaking, but find this DNC a little sticky. ![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)