I have been purchasing this product for a few years. I've tried other primers - Chanel, Yves, Nars, Mac, Smashbox, Bobbi Brown - but this is my favorite. Every time I stray and try another product, I'm disappointed and always come back to this one. This product is light-weight and adds just a hint of shimmer. It's not sparkly. It's not oily - won't make your skin shiny. It doesn't cause break outs. I love using it as the primer for the days that I'm just hanging out, running errands, or have low-key functions.
I have the other the other GA primer (which I really like) and thought I would try this one after seeing it online and reading other reviews. I did not find this primer to be nearly as good as others. It does not glide on the skin - instead it was absorbed making it necessary for me to use far more product. I do have drier skin but always moisturize before any primer and makeup application. I did not find that it enhanced the look of my luminous silk foundation in any way. Sent this back and will stay with the GA regular primer.