This brand and masks were pretty much unknown to me until my friend who went to Japan for the holidays asked me if I wanted anything. Being the asian beauty junkie that I'm, I told her to just bring me a couple of sheet masks and this is what she brought me :

When I asked her what the masks were intended for, she basically told me "just moisture and all" for all 3 of these.

After a little digging on the internet, this is what I've come up with :

Best selling mask in Japan. Daily use of this mask promotes soft, silky skin, increasing its ability to retain moisture and enhance the absorption of serums. The addition of Royal Jelly and Hyaluronic Acid provide deeply penetrating moisture without leaving any sticky or greasy film. Great for sensitive skin types. 

It is said to be completely free of oil, alcohol, fragrance and coloring and the material composed of 100% cotton. 

 My version is packaged with 7 sheets packed all together with a closing. It's not the most hygienic packaging but it's manageable. I've read that after opening, you could keep them up to 80 days, so I wouldn't recommend keeping them after the deadline.
Ps : I've seen these packed with more than 20 , 40 and even 100 of sheets in one packet. To each his own truly, even with it's intended daily use with a 100 or even 40 of these I'd worry about them drying.

The main downside of this mass packaging is that all of the masks are stuck together and I actually didn't even realize while taking the picture that there were 2 masks stuck together.

Where to buy them ?

I don't know the price of these but my friend told she got these for around 3-5 bucks in Japan, for now, I've seen these sheet masks going up to crazy prices on amazon. I've found them on a site called Imomoko for 5.50$. Never tried the website but they ship via UPS for the USA and DHL for the rest of the world. These 2 carriers equals custom taxes every time for me, so I don't think I'll try it but if you do, I'd like you know your experience in the comments below or through my twitter.

 All the ingredients are listed as :

Water, BG, glycerin, ethanol, Na hyaluronic acid, polyglutamic acid, lecithin, soybean oil, human oligo-peptide-1, soybean seed extract, leaf extract chalk arch, arbutin, alginic acid Na, hydrolyzed collagen, tea leaf extract, Scutellaria root extract, polysorbate 80, phenoxyethanol, methylparaben

None of these ingredients trigger acne or irritation on Cosdna but some ingredients are yellow flagged, however, they are listed as being emulsifiers and preservatives, so this product is pretty safe for any skin type. 

HOW TO USE IT

After cleansing your face, simply put it on and pat the mask onto your face to avoid air bubbles. I personally have a really small face so the mask is a bit too big and air bubbles are hard to avoid so what I do sometimes is cutting the part that goes just before the lips and just re-adjust the mask accordingly.

--> If your skin is irritated, I wouldn't suggest using it though because it tends to really burn up those irritation. It lasts for a good 5 mins and then it just tingles a tiny bit.

I wasn't really interested in these sheet masks mainly because all the writing of the packaging was in japanese and my friend only told me that it was for moisture purposes. Harsh fall/winter weather came in France around October and my normal skin during summer turned to a dehydrated version of it. 2 mins was the only time I could stay still without rushing to put some cream on after washing my face, my skin would feel so tight and dry, it's unbearable. I definitely needed some moisture back in the game and that's when I thought I'll go for the pink one of the bunch.

In the pictures, I was down to my last sheets and I didn't think about taking pictures first because I truly enjoyed these masks. Up to now, they were the best moisturizing masks I've ever used. My dehydrated skin would go back to a really well moisturized skin. My skin would feel so smooth and gentle, I could even go to the point that I had baby like skin. I've used 3 of 4 of these 3/4 days in a row (I've read that you're supposed to use these every day for best results) and I loved these so much that I'm quite sad to have finished already. I'm definitely going for the purple one next.
The only downside I could actually point out is that, after removing the sheet from your face, it does feel a tiny bit sticky and you have the wait quite some time before it goes away and the product is completely absorbed by your skin. I used these at night so the stickiness doesn't concern me that much.

I'd definitely re-purchase this if I can get my hands on these. I would recommend these Lululun sheet masks to anyone who wants a truly working moisturizing sheet mask with instant and lasting results.