I have Indian skin and my skin is the fairer side of tan. I used this product in shade Barcelona for one entire year, leaving my Mac Studio Sculpt NC40 aside to try something new. (My assumption was that its more expensive so should be better right?)
This is a pricey product, but definitely a good quality foundation. However, after using it for a year I decided to switch back to MAC.
This was because of the ashy color my skin seemed to look in all my photos during my time using that foundation. In person, it looked natural (only slightly ashy). The thing I have found with the nars range is that it is not as bright as the shades you can find from mac or fenty beauty. If I were to consider all my friends which have used the same shade I would say that this product oxidizes over the day to a grey on most Indian skin types. This is because brown/tan skin (even when you are on the fairer side of the spectrum) tends to need a more yellow/bright base.
Overall my thoughts on the sheer glow is that is would be great, but seems to look ashy on Indian skin tones in comparison to the colours that can be found at MAC.
One of my least favourite foundations I have ever tried, I really wanted to love it but unfortunately it just did not work well for my skin. I have quite dry, dehydrated skin and after just hours of use it looked really oily. Just did not work for me at all.