I've never heard of Tresemme Naturals causing build-up. Rather, most people here have successfully used it as a leave-in.
Curly and PROUD!!!
My hair has a mix of low/med/high porosity, and it's medium textured (some are still fine, though!)
CG since Sept. 2011
: Vo5/Suave Naturals/Tresemme Naturals*
: GVPCB*, Tresemme Naturals*
: Shea Moisture Moisture Retention
: KCKT*, Coconut Oil, Olive Oil, Grapeseed Oil, Honey*
* represents my HGs!!! Finally!!!