That’s good to hear @QueefofSheena
Yesterday I got round to using some hyaluronic serum from last year’s space NK calendar. It was kept in a box, sealed and in a cabinet away from all light. I was disappointed to find about a third missing.
By chance I got the same serum in today’s Selfridges so decided to compare. The new bottle is full to the top. Do you think the older bottle evaporated? Or did they just give out half the already small 10ml stated?