I gifted this serum my mom (50+), before this one she uses the borabit ampoule by Missha, but that one is quite expensive and the effect wasn't too special. At first,

she didn't like this that much. She felt like it took forever to sink in and left a sticky feeling to the skin. But after using it for a few weeks now, she actually loves it.

She says, it makes her skin glow, feel more plump and takes care of the uneven skin tone. I gave it 4 stars, because there's always room left for improvement :P