Yeah, some idiot on TV talking about this all the time.

Putting a brush on long stick into your a.s you give a better result.

Colons cleanse themselves naturally.  A good diet will prevent
constipation.  The only thing I have seen reported is that clay will
coat the colon--in which case you want to cleanse it of the clay if
that is possible. I would think this would take more than a
"cleanse".    I kind of laughed at this.  Who would eat clay?  Then I
read about the poor souls in Africa who are starving and who eat
cookies made from clay.

There is also the possibility that some clever scam artist will
convince you that you have to cleanse your colon and you will buy some
product that might do damage.  Remember the blue man who for some
reason was persuaded that he should take colloidal silver and it
turned his skin permanently blue.  Stay away from non standardized,
unregulated health food store junk.  It takes a drug about 12 years of
research and testing  and review before it can reach the market.  And
even then we might hear of all kinds of side effects and dangers and
possibly the removal of the drug from the market.  The stuff in those
bottles in the health food store doesn't even have the minimal safe
guards.

Dolores