This mask did not have a lot of serum, but enough for it to last for 20 minutes. The mask material is the thickness of a paper towel. The packet I received has a different image than the one used on the site  so maybe it is a new formula? The results did not do much for my face. 

really moisturizing mask fells great on the skin the sheet itself is very very thin but stay on the face and does not slid off. in the morning my skin felt so smooth and soft and i really recommend it! 

Its an alright mask 
 

my favorite fron this line. Recommend

Didn't do much of a job to me, but it may do differently for you.