The famous peach fuzz as its called. All women have it, fair skinned are not so noticeable, but those with dark skin can have dark peach fuzz.
Its the light and the angle of the photograph makes Kate's look really bad. If you saw her in real life you wouldn't notice it.
Do you know, I always thought 'peach fuzz' was something entirely different. Well, not entirely, but, you know, different.