NARS Sheer Glow Foundation ($42.00 for 1.0 fl. oz.) is touted as a “satin-finish foundation with sheer and buildable coverage.” It is also supposed to have “skincare benefits” when used regularly to “improve skin brightness, radiance and texture.” It is recommended for normal to dry skin types.
It is a light coverage foundation which can be built to light-medium coverage–definitely no more coverage than medium coverage at most. I wouldn’t describe it as sheer really; and if you have near perfect skin but are looking for a sheer all-over foundation option, I would keep looking. You could consider using it where and as needed, too, but for flawless or almost flawless skin, I recommend a tinted moisturizer over this, because I think this would be overkill.
I get about four to six hours of really great wear with this formula, but it does start to wane by the eighth hour. I think a little blot powder or pressed powder at lunch time helps to keep it working all day–I just wouldn’t describe it as a long-wearing foundation. Like most foundations, though, if you have drier skin, it may last longer than you. I’m normal-to-dry, and it’s at the eight hour point that I notice I look a lil’ oily and less even overall (a sign foundation is fading, disappearing, etc.). Oilier skin types are better off trying Sheer Matte, though, because the wear doesn’t last all day long, even on normal skin, and there is still an inherent dewiness from the finish that may accentuate oily skin in a not-so-flawless kind of way.
The consistency is thick without being goopy but not so thin that it applies too sheerly. I always apply it by using a concealer brush and dotting my face with the foundation, and then I take a foundation brush (MAC 109) spritzed with water to blend out the foundation to cover my entire face. The formula doesn’t dry down right away, so you have a lot of time to blend it in, and it seems a touch tacky after a few minutes, but it finishes its dry down after five minutes or so and completely settles by ten.