Basically, a persuasive thesis statement is a single sentence in the introduction that states a personal opinion and comes after background information about the chosen issue. It acts as a brief summary of your stance in the entire debate and helps readers understand what you’ll write about in the rest of your persuasive essay.
The conclusion weaves together the main points of the persuasive essay. It does not normally introduce any new arguments or evidence, but rather reviews the arguments made already and restates them by summing them up in a unique way. It is important at this stage to tie everything back to the initial thesis statement.