Free leval only for Admin

Hi Andrew,
I am here again 🙂

function pmproc_hide_free_levels($levels){
    if( is_user_logged_in() && pmpro_hasMembershipLevel() ){ //check if user is logged in and has a membership level
    $newlevels = array();
      foreach($levels as $level){
          if(!pmpro_isLevelFree($level)){
            $newlevels[] = $level;
          }
      }   
      return $newlevels;
    }
    return $levels;
}
add_filter("pmpro_levels_array", "pmproc_hide_free_levels");

Only admin can see this free membership in front side. how this is possible with above function. any idea what i need to change in above function please.I have tried some condition but not working so.

Thanks
Ahir