Soooo ... which one is it ?
Skin that tans slowly isnt exactly unusual. That pretty much describes all white people.
To my knowledge one generally differs between four skin types:
Type 1 - Tans slowly, has freckles, redheads are usually this type (Northern Europe)
Type 2 - Still can completely untan, but can tan with strong enough sunlight and exposure to it (Europe, Asia)
Type 3 - Always tanned to a certain degree, can tan even more (Northern and southern Africa, equatorial people outside Africa)
Type 4 - Always maximum tanned (equatorial Africa, Aborigines aka native Australians)
The once famous, then infamous, now rather forgotten Lindsay Lohan (Mean Girls etc) for example is skin type 1 and a natural redhead, even if she rarely if ever shows it, and she clearly has been in the sun too much, which aged her skin prematurely.