I have Paul & Joe Beaute Moisturizing Foundation Primer N in shade 03 Crème, the lightest shade available. This gives almost zero coverage and is devoid of shimmer. The texture is liquid, and acts more like a lotion. It is highly moisturizing and does not contain that much silicone. So if you are concerned about pore refining, stay away from this one, it doesn’t fill out your pores! But if you need a bit of hydration boost, grab it, it is fantastic.
I have previously swatched the shade 02 Miel, which is totally not my skin color. The general feeling I get is that shade 03 is a lot more watery than 02. Maybe it is because 01 and 02 provide more coverage, while 03 is translucent, so formulation is a little different.
My BB cream and foundations looks brighter when I use this, but not longer, because darn those Korean BB creams last really long. The dehydration lines however are reduced at the end of the day, courtesy of the moisturizing properties of the primer. If you only own emollient moisturizers that cannot be worn under make up, light primers like this will help with the hydration.
A small nitpick is the lack of sun protection, making it impossible to be worn on its own. Otherwise, this is great stuff.