With your Publons profile, you can keep a record of the pre-publication reviews you've written for journals or write post-publication reviews of any manuscripts you've read.

Writing post-publication reviews is a good way to demonstrate your expertise and writing them on Publons is a great way to bring this expertise to the attention of editors.

You can also use your Publons profile to cross-post post-publication reviews you've written elsewhere. Simply add them through the forms on the site. We don't currently offer a way to link them to their original place of publication but you can add a link within the review's content.

Also note that you can gain merit for your post-publication reviews. They can be scored, published, and/or endorsed. 
You may read more about the Publons Merit System here: What is Publons Merit?