I think this cost close to $3 and is a really cool product. Mix a few drops with your makeup to make it into a cream that dries and then is super long lasting. You could use it with a lot of products but I mainly use it for my eyeshadow. Make sure you don't just drip it onto your powder shadows in their pallets because this will ruin your pallet. Try scraping a small amount of shadow into the provided tiny plastic mixing bowl (which I lost, it would be great if it was attached to the packaging so it didn't get lost). You could use it for other makeup too, mix with brow gel or powder, gel liner possibly or even on top of lipstick for a long lasting seal. Honestly this product is so versatile. A great buy!

Works amazing. Lasts all day. No shine or grease. Great price. Does not feel heavy. Amazing. Highly recommended.

You can use this product to 'lock & seal' your makeup: eyeshadow, lipstick, eyeliner and even blush. In order to use this product, you have to squirt a drop of the liquid seal into the pot provided, and then dip your makeup brush or liner into it. It works well turning your eyeshadow into a liner; it stays on for hours! However, once your eyeshadow brush is saturated with the product, it's a bit difficult to get the shadow onto the brush itself. It works well in sealing your eyeliner on your upper lid. Unfortunately, it stings your eyes when applying it on your lower lid and gets into the water rim, leaving you a teary eyed mess!