Help needed on sunscreen for cats

I have a young cat with a white ear and a lot of white on her face.
I have been trying to buy suitable sunscreen for the past month but have not had any luck.
I am wary to use baby, human or dog cream because she will no doubt lick it and as she has gingivitus I don't want to take any chances.
Yesterday I was told by a pet shop that they don't make a sunscreen for cats.
Has anyone else had this problem?.I live in Wales UK.

I found an old TCS thread about sunscreens for cats: http://www.thecatsite.com/t/280798/sunscreen-thats-safe-for-cats

I also found this that is more UK specific: http://www.petforums.co.uk/threads/sunscreen-for-white-cats.227525/

Thank you for your help LTS3. The weather here has been lovely for the past few weeks. I will get a product today so I bet it will rain tomorrow!!

I have all-white cats and I was told by a vet to use Nivea total sunblock for babies on their ears and noses. I have never had any problems with it over ten years now.

Thank you. That will be easy to buy. I have spent ages researching on the internet and all I had to do was post the question on TCS to get the answer.