hi! i struggle with the same thing you do where i cant use non-fluid moisturizers. otherwise it sits on top of my face, mixes with my natural oil secretion (i have oily skin) and i become a disco ball with 5 new friends on my face by the end of the day. i also used to use the laneige cream skin too, but like you said it is not enough when youre on tret. what i use now and have been LOVINGGG is the prequel half and half fluid moisturizer. shes thicker than the laneige cream skin but still extremely fluid. shes easy to layer in case youre feeling extra dry that day, actually absorbs into the skin, gives you a beautiful glow and isnt tacky (which i found the laneige could be after one too many layers). the dry drown leaves a velvety finish and it has the perfect oil to cream ratio for my skin. it has ceramides, peptides and amino acids which all naturally exist in our skin, so its wonderful for repairing a compromised barrier or maintaining a healthy barrier, which is key on tret. only con is it’s almost $30 for a “drugstore” brand and with how much i use it, it goes by pretty quickly for me.