Hi,
I've posted information about the product which is the only one which really works - so much better than Calmoseptine - which is not designed for colectomy patients.
There's a thread on right now on the topic of leakage and the answer is right there - Convatec makes a paste - in the UK known as Orabase Protective Paste - which is the only one which will leave a protective paste round your burning butt all the others, and I've had a pouch for 35 years, so I should know, won't stand up to the job.
Good Luck!