I have been testing the Nordic Hydra Aqua Serum for a few weeks. The consistency is light and fresh, almost like water, and it absorbs quickly into the skin without feeling sticky. I apply it after cleansing before my day cream, and my skin feels softer and hydrated throughout the day.
The serum works well under makeup and feels easy to use thanks to the pump bottle, which makes it easy to dose the right amount. The scent is mild and neutral, which I find pleasant.
In summary, it is a serum that does what you can expect; it hydrates the skin in an uncomplicated way without being either spectacular or bad.