Its products used for colon cleansing.
But not to be used during the Master Cleanse.
A few years ago someone came through here and tried to popularize the use of it as part of the Master Cleanse.
Many people fell for the gimmick and were cheated badly out of the wonderful results usually obtained from doing the cleanse.
Some got into at least mild trouble as a result.
Fortunately this forum has long since "cleaned up" from such deception and nobody has been able to successfully promote it to unsuspecting newcomers.
Thanks to the efforts of some long term posters who know well better.