To Buy or Not To Buy : Maybelline SuperStay 24H Concealer

Concealer is life savior product, which is why I am always looking for the holy grail. I am a big fan of Nars Radiant Creamy concealer (I have used 4 or 5 of them since it was launched). Unfortunately, NARS does not exist in Lebanon (yet? *hoping*) so I had to find a new savior.

When it comes to complexion, I prefer high-end brands but I wanted for once to try a drugstore product. I decided to give Maybelline a chance since I usually love their eye products. I got the color #3 - Medium.
The Superstay 24H concealer promises a full and ultra long-wearing coverage. 

+ Inexpensive
+ Fair coverage

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- Way too dry & irritating
- Enhance flaws like fine lines
- Thick consistency, so it is not easily blendable and looks fake
- Not adapted to sensitive eyes 
- Oxydize to a reddish color in a couple of days!
- Not longwearing as advertised

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The medium beige color turned..red! o.o

You can see on the base of the applicator the change of color and texture (the oils seperating from the water).

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Here's a swatch.

Blended.
As you can see, the result is not very luminous 

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So buy it or leave it?
PLEASE LEAVE IT! 

This is so far the worse concealer I have ever tried. This is a big failure for Maybelline, they should reconsider the formulation of the product I don't understand how the change of color happenned so fast. 
Beside, this concealer does not keep its promises as it does not wear all day long. Keep in mind that the ideal undereye concealer should provide both coverage and luminosity to hide dark circles and makes you look more awake.
I threw it away as fast as possible!