COSNORI - syafflyn review for The Perfect Whitening EX Ampoule

hmmm actually I was excited to try this ampoule because of the individual packaging so it does look more "fancy". However I didn't notice any visible result. My dark spot are still there. I hope it may lighten my dark spot just a tad bit but it failed me. Secondly this ampoule does feels sticky if you applied it to much and once you open the ampoule you need to use it within 24 hours only.