It seems that the formulas for the 'scalp concealing' products are constantly changing from effective to less than effective. The best concealer I have ever used was Couvre, and none of the replacement products have equaled its performance. The follow-ups have either been difficult to apply evenly, were too dark, or even too weak. The 'rub on', powdered cake (coming from make-up like containers) were useful but not as good as Couvre. This most recent product is more difficult to apply evenly, and unlike the previous formula of Sevich Scalp Concealor, I notice a shine on the back of my head after application, and the 'shine' is what makes thinning hair more evident.