I got two of these masks for free with my recent purchases from my regular HK seller. They retail for 420HKD for 10 sheets (which is 50USD for 10 sheets). Not the super pricey side.
Comes in silver satchets like this:
Ingredients and instructions (click picture below to enlarge)
Here's what it looks like out of the sachet. The blue bit is the plastic film layered over the actual mask which you are meant to remove. The mask is not an ordinary paper sheet mask , it's those more celluloise based masks with a slight jelly consistency- rather popular with a few cosmeceutical brands in Asia.
The sheet opened- you can see in the middle there's the jelly like bit, that's the actual mask. The rest is just the plastic film over it.
Applied on the face- interesting consistency isn't it, it's like a layer of jelly on the face. Due to the flexible consistency, it adheres to the skin very well.
I leave on for the suggested 20 minutes then remove. This is marketed as a brightening/whitening / spot removing mask with some hydration. It does hydrate very decently and I usually do not believe in the 'brightening' effect that a lot of these masks boast about unless you are able to use these very frequently, like 2-3 times a week. There is no strong fragrance and is rather pleasant to use.
Ingredients: Hyaluronic Acid, Collagen, Panthenol (Vitamin B5), Palmitoyl Oligopeptide, Hydrolyzed Wheat Gluen, Ceratonia Silique Gum (Pentacare), Tranexamic Acid, Ascorbyl Glucoside, Inositol Hexaphosphate, Kojic Palmitate, Arbutin, Seaweed Extract
Overall rating 4/5, I would be interested in maybe trying a full box to see if the brightening effect is more visible. However as a moisturising mask this is quite nice to use.