Polarity refers back to the All round charge of your molecule. Polar means it is slightly charged, non-polar indicates It's not charged in any way. I dont ReX or wash anymore. there is no need to. I've tried using blind tests both of those. I cant look for a difference. https://deadheadsusa10616.blogdomago.com/35146914/the-best-side-of-where-to-buy-copyright