Review (5/5): I'm obsessed with this!
First for a disclosure: I didn't buy the Plexiderm on Amazon, so you can believe my review or not.
Now for my review: I was concerned, despite many online videos that show this product in action, that it would be a scam product. And that's just because of the reviews here on Amazon. NOT! I tried it and it worked EXACTLY as promised. I watched in my makeup mirror as one eye bag disappeared before my eyes- fun! It didn't leave a visible film but I have very light skin especially around my eyes, so this product might leave a chalky looking film on darker skin. (They recommend mixing the product on the palm of your hand with your foundation 3:1 if that is an issue)
Next: This is a TEMPORARY fix, just like makeup is. It will only last 6-8 hrs depending on whether you sweat or have oily skin (both things will cause it to 'disappear'). Some bad reviews here reflect frustration over the bottle dispensor (you have to pump to prime it and must be careful not to overpump and waste product)- for me, maybe i got a new and improved bottle type, but I didn't encounter any problem whatsoever!
As for price and quantity- yes, its expensive and yes, you'll be lucky if one bottle lasts you a month. As for me, I don't intend on using it every single day unless I get hooked. :0 Each bottle has only 0.5 mls in it but you only need a teeny tiny drop each time.
Lastly, i think your review will depend on your expectation. My expectation was that the product would do what it said (temporarily de-puff some eye bags) and it does exactly that so how could I take any stars away from them? The cost was fully disclosed beforehand as was the product performance. All in all, I'm now obsessed! And I'm 100% sure that this product is in every single makeup artist to-the-stars bag these days.