My Beauty Diary make great affordable sheet masks that are drenched with essence. Taiwanese beauty brands are not hyped as much as Korean or Japanese ones but I do believe they are just as good as their competitors. Plus unlike Korean's recent mask sanitary issues, the well-known Taiwanese sheet mask brands are known for their sanitary standards and My Beauty Diary is one of the safe brands to count on. I use this citrus firming and clarifying sheet mask at night because vitamin A aka retinol is one of the ingredients in this mask. Vitamin A helps with signs of aging and firms the skin, making it prone to sun exposure damage if you use this ingredient during the day. After using this mask, I do feel my skin more firm than before and most important of all, very hydrated from the generous essence from this mask. I suggest to use this mask within the recommended time because it could be drying if you leave it too long. I can say this with experience because if you leave the mask too long, the hydration you got from the mask will backfire on your skin, making your skin dryer than before.