There was a thread on this a while ago and I think it honestly depends on the person and how prone they are to buildup. You should try the gentlest cleanser available first but if you're still getting buildup just go a step up. Maybe graduate from cocobetaine all the way up to say olefin sulfoconate or something. I have TJ's Tea Tree Tingle shampoo to clarify and even though I haven't tried any products with silicones since using it I'm next to certain that stuff would get it out.
3A - C, HP, ME, HD. (Coarse, High Porosity, Medium Elasticity, High Density.)

CG since Nov. 2012

Poos: SM Moisture Retention + Yucca Baobab, TJ's Tea Tree Tingle
Condish: TJ 'sTea Tree Tingle*, SM Moisture Retention* + Curl & Shine + Yucca Baobab, Yes to Blueberries
Stylers: KCKT*, SM Curl Enhancing Smoothie* + Curl & Style Milk*, KCCC*, FSG*, CJ Pattern Pusha, Curl Keeper
Sealers: Jojoba* or Grapeseed* oil

* = HG