Product reviews on Google come from many sources. Your ability to delete reviews may differ, depending on the source.
Add a product review
To write a review for a product you bought directly on Google, check your email for an invitation.
Delete a product review
If you wrote a review for a product bought directly on Google, you can delete it anytime.
To find all product reviews you've contributed to Google Shopping, in a web browser, open your reviews page.
From there, you can delete any or all reviews listed.
Google Customer Reviews
If you wrote a product review from a purchase on a third-party online merchant through the Google Customer Reviews program, you can't delete the review. This is because these product reviews are anonymous and not associated with your Google Account.
Third-Party Review Providers
We gather product reviews from advertisers, merchants, and other review providers to create a comprehensive shopping experience.
If you'd like to delete a product review you’ve written through a third-party service shown on Google Shopping, delete it through the original site.