It's not a dumb question but yeah, you'll have to read the ingredients and avoid products with any ingredient that ends in cone for example Cyclomethicone or Dimethicone etc.

Your best bet migh be to purchase all natural products which don't use cones.

Cones can weigh the hair down which may result in fluffier or wavier hair, but I'm not sure if those results are certain as my hair type is totally different than yours.  Although, my hair has definitely gotten fluffier since I've given up shampoos and conditioners that contain them, opting for natural products such as Aubrey Organics and Giovanni.

Good luck!