I have posted about fasting, which is very much also a process of cleansing too, but there is definitely room for a post specifically just on detoxing/cleansing.

Here's one on fasting: https://steemit.com/health/@ura-soul/fasting-as-a-therapy-for-increased-health-and-vitality-lose-fat-strengthen-immunity-heal-and-look-feel-better

And here's one with a free, full length documentary about healing with juices in portugal, which also explains a fair bit about detox:
https://steemit.com/health/@ura-soul/life-changing-video-healing-serious-illness-using-a-fresh-juice-diet-plus-help-me-to-create-my-own-healing-center