This is my holy grail sheet mask and pretty much the only one I'll ever use from this point onwards. I've tried other more expensive and popular K-brands like Mediheal, Innisfree, Etude House and TonyMoly, but they always felt irritating on my face and then left an uncomfortable tacky residue on my face which ends up being comedogenic later on(and causes mini-breakouts) regardless of humidity and temperature. As long as your environment is a little cool and dry, the essence in this mask always absorbs extremely quickly into your face and neck leaving absolutely no tacky residue even for my combination-oily eczema skin. As for the 'whitening' and retexturizing effect, it obviously does not change your skintone but it definitely reduced the severity of my post-inflammatory pigmentation and erythema(brown and pink spots) on my face over just 2 weeks of daily application. My skin also feels so cool and bouncy everytime after I remove the mask and I see a more dramatic smoothness in my face after using up about 20 masks in 2 months. I definitely recommend buying this during sale seasons because it's crazy cheap!