Candice does get periodic sun exposure due to being a bikini model but she is generally not excessively tanned and dark so I'm not sure about the sun damage. Somebody like her probably gets a lot of required services (visits to dermatologist, nutritional consultant, workout, etc.) and she must try to maintain her skin. I bet she has a huge cabinet of skin-care products and knows a lot about it like most successful models do.
I wear cream moisturizer and visit my dermatologist periodically :-p With the makeup comment, I often see women seemingly with thick makeup +wrinkles and then this evidence of aging disappears when I see them the next day. The make-up sometimes dries and cakes over nature folds of the skin and the result can look bad. And of course, not sleeping much and having stressful weeks can make temporary wrinkles and then they're gone the next month.
I used to have a fold underneath my eyes from a stressful period but they're gone now, but I have a truly permanent wrinkle above my nose that was originally a small scar.
So I asked the Doc what she would do about it and she said, heh heh, 'Don't frown ever again.....or there's botox'.
PS. Candice has probably done something to puff up her lips. They look a bit off to me.
I just feel like smoking+drinking+Genetics is why her eyes are like that