I'm having a hard time with this. It's almost like my skin is repelling it - it does not want to sink in! It kinda just sits on the surface, unwilling to absorb. (My bf has the same experience.) I use this with other hydrating layers so the HA in it should work fine. I use the HA essence from CosRx and it has done wonders for my skin so I know that the HA isn't the problem. This is a pass for me, will not buy again.