How many days does the detox kit last? Chef Ahki March 30, 2018 02:57 Updated Follow The detox kit lasts 30 days, except for the Black Moss, which supports the cleanse. It is a 2 week supply. Related articles What does a detox feel like? What is a toxin? Who should detox? When is the right time to start a detox? Does the detox kit help with IBS? Comments 0 comments Please sign in to leave a comment.