Gellibaff is a completely harmless powder that soaks up 400 times its own weight in water and theres no need to worry about cleaning up either when the funs all done simply add the sachet of dissolver powder and the goo disappears as magically as it appeared the goo reverts back to plain old coloured bath water so dont worry about it blocking or clogging the bath it wont the dissolver sachet powder is simply pure table salt the same as you put on your chips