I am always searching for the elusive, skin perfecting sheet mask, so when I saw this Collagen Jelly Hydro Bomb Plump Mask by Ivoskin, I felt the need to investigate and ordered them.The mask comes in two pieces, and each piece is encased in plastic sheets, front and back. After unwrapping, I was not sure which side was meant to go against the face, so I simply chose the side that looked like it had more serum on it. I like that they also left the cutouts from the eyes and mouth in there, as I use those for extra help between the eyebrows and on either side of my nose. This mask does contain added fragrance, but it's a very light and natural scent that smells vaguely floral, and is not overly sweet. At first, the mask likes to slide around a bit, but after ten minutes or so, it had already dried down enough to stay in place better.I left the mask on for a total of 3.5 hours, and that is the longest that I have ever worn a sheet mask for, so I was expecting visible rewards, and I got them! When I removed it, the mask was clear and clinging to my skin, so I was gentle and slow in removing it. The results were pretty amazing. There was not a pore to be found anywhere, because my skin was so plumped up and firm that they all disappeared, and my skin looked super smooth- even my wrinkles did not look as pronounced. It's an hour later now and I keep touching my face because it still feels so soft and supple. I did have one setback though, and I am sure that it's my own fault... I have rosacea, and when I removed the mask, my skin was reddened. It did not stay that way, and after I pressed a cool, wet towlette against my face, it calmed right down. I don't blame the mask for this, because I used a different sheet mask the day before, and I exfoliated the day before that. So my bad!Moreover, I am thrilled with this mask. It gave me the closest look to glass skin that I have ever seen from a facial mask, and I have tried a LOT of them. I think it's important to note however, that the collagen jelly in the mask is not going to be absorbed down deep to act as collagen in the skin. This is under debate, but at this point, most scientists agree that hydrolyzed collagen cannot make it down to the dermis layer, which is where collagen is produced. What that collagen water does do is act as a humectant and draw moisture to the skin for that all important plumping effect. The collagen water is definitely the star of the show here, but it's not the only helpful ingredient. This formulation also uses sodium hyaluronate, betaine, red algae, and a bit of snail secretion (mucin) for even more hydration. In addition to that, it also contains niacinamide, adenosine, and tocopherol for anti-aging, plus Shea butter for some heavy dutyskin softening.I really love this mask and going forward, I will be using them weekly. When I ordered them, the box of four was selling at $19.90, which I find to be very reasonable, but today I see that they are on sale for $14.99, and that is a screaming deal!Highly recommendedMade in Korea