By  the  enactment  of  this  article  the  state  fully exercises the
  exclusive right to regulate and control the labelling and ingredients of
  household cleansing products distributed, sold, offered, or exposed  for
  sale  in  this  state, within the scope and limitations of this article.
  The terms "regulation"  and  "control"  include  prohibitions  or  other
  restrictions on the distribution, sale, offering or exposing for sale of
  such  products  in  this state. In order to assure statewide uniformity,
  such regulation and control by any political subdivision of the state of
  such products is prohibited after June 25, 1971 provided, however,  that
  any  such  regulation  and  control  in  effect on June 1, 1971 shall be
  unaffected by this section.