What is the difference between suncream for kids and standard suncream?

factor 50 is factor 50 whether its for kids or adults. Just be aware if you use factor 50 you will probably come home as white as you were when you went on holiday. Why not try factor 20 and just stay out a couple of hours each day till you start to go brown then go to factor 10 and stay out a little longer and you will probably be fine with that. Unless you don't want to take a tan, but factor 50 is almost total sun block. I would also suggest that even if the cream says waterproof to still apply it frequently as it rubs off on your towel or sun lounger.