I need to acquire some sun protection cream but, before I spend over £30 on it, I wonder if anyone can advise me on SPFs. A few facts: I am extremely fair skinned and a redhead, so reckon I need to go for a high factor, possibly 50. The only thing which makes me question whether or not a factor 30 would be adequate, is that I don't sit out in, or spend a lot of time in the sun. If I did, I would definitely go for the higher SPF. There is only about £3 difference in the cost, so price isn't an issue, but I do want to ensure that I am fully protected. Any help would be appreciated. Just out of interest, the brand I am purchasing is Ultrasun once a day application. Also, is lotion for the body okay for the face, or is one better using a dedicated face lotion? Thanks.