I learned very young that skin care is a big deal.  The includes proper nutrition, avoiding too much sun, among other things
I need to know more about skin care as I age
Some people like to use cosmetics, exfolliation, and laser treatment.  
Is it true that drinking a lot of water is good for my skin?
I am sure it is.  Also, sun screen is a great thing for your skin
I never understood how sunscreen works is the lower number better or the higher number?
Sunscreen is a pretty interesting product.  I either absorbs or reflects UV rays so you do not have to get sunburned
Oh ok what is your best tip for good skin care, whats most important?