Link Detox is a technique in which we remove toxic or spam links from the site which are unwanted & hurt the site.
We can do it through tools. Google Disavow tool is one of the best Link Detox tool to remove spam links from site.
And I believe that this term Link Detox have been invented recently after Google find out and penalized over toxic links. The first way is to email all owners of websites to remove the links from their website. Google Disavow tool should be the last option that can be used if a webmaster or website owner is not responding to repeated emails.
Link Detox is helps you to find unnatural links that may trigger google penalty or Google filter.This helps you to analyse all your backlinks and protect your website from future penalties and protect the website.
Detox means removal of low quality backlinks, so your website does not become victim of any google penalty, linking to bad neighborhood is not considered a good tactic.