Meg cleaner wax is just that, it safely removes wax, oxidation and small imperfections. It may have a small amount of wax in it but I wouldn’t recommend that you only use the cleaner wax.
I used it to get rid of some of the mild imperfections in my paint then I put on a coat of Zymol. I think Zymol is one of the best waxes you can use on your car. I’ve used it for years and people have always commented on how my ‘89 ‘still looks great’. Zymol states that it has between 31-61% Carnauba(wax) content, all I know is that twice a year I would clean with Meg cleaner and wax on average of about twice a month and the car looked great, not to mention that the garage had the sweet smell of Carnauba wax.