This product has saved me from creased and dull eye makeup! I've always wanted a primer, but I couldn't manage to convince myself to spend de £10-15 on the well-known, ever popular ones. This has proved to be perfect for me though.

Price
It comes at only £1.5 so it'd be a shame not to try it. The size seems big enough to last for a long time.

Packaging
It is a simple design, which makes it look more expensive an up to date. It has a applicator similar to a gloss.

Product
The texture is like a concealer, but a bit less pigmented and more silky; I assume this is due to the silicone base as for any primer. I apply it to my hand first, and from there take it on my finger and pat it lightly in a thin coat. I noticed that a thin layer work better.
It immediately makes the eyeshadow more intense, and will make it stick on better. It will make your eyeshadow last a lot longer then before, look more vibrant, and it will not crease for at least 8-10 hours for me, as I have oily lids. Also helps me get out more from cheap or lower quality eyeshadows.

I think it is extremely effective and well worth the money. Would recommend it.