The HK Cancer Council? American? Australian?
We got our Australian Cancer Council (it's not called that... can't recall right now what it is actually named) from Bumps to Babes. Not familiar with anything else.
You might be able to find something at IMI or Lauren Bramley and Associates. Just give them a ring to ask.
I like it cos it's non-sticky. We were using the Avene spray for children but they have discontinued it and replaced it with a tube for both adult and kids.