That was my original thought, too... so then I clarified and went a few days without product (because I need to know, right?
Same thing! What I think is happening, though, is that my roots aren't taking much water in to begin with. I've noticed that even in the shower, they tend to feel dry. My showers are usually under three minutes (really utilitarian), but today I decided to sit under the showerhead until my roots really felt soaked. Took much longer than that.