Abstract: In an ostomy appliance comprising an adhesive, flexible, skin barrier product for securing the appliance to the user's skin, said skin barrier having a hole for receiving a stoma, ureter or catheter, and said skin barrier comprising, in the surface to be secured to the user's skin, at least a first zone showing adhesive and barrier properties and a second zone showing moisture absorbing properties wherein the first zone comprises a substantially homogeneous mixture of from 15 to 95% by weight of one or more rubbery components and from 2 to 85% by weight of a starch, and furthermore may comprise from 0 to 60% by weight of one or more hydrocolloids, from 0 to 50% by weight of one or more tackifier resins, from 0 to 10% by weight of one or more plasticizers and from 0 to 5% by weight of a pigment, the barrier adhesive “behaves”, in a dry state, Theologically as an adhesive comprising hydrocolloid but which does not absorb moisture in the presence of moisture.