Product description from H&M website:
"LIMITED EDITION. A clear, creamy face gloss for on-the-go application that brightens and highlights features. The lightweight formula provides a colourless finish and subtle sheen on bare skin or on top of foundation. 8 ml. How to use: Apply to your entire face for a vibrant glow, or along your cheekbones for a spotlighting effect."
It's LE, so of course I bought a few jars for myself :)
I use it as a cream highlighter, it looks more natural than any of the classic shimmery illuminators. But you can mix in some powder, cream or liquid shimmery highlighter to create your own unique product. Mix the gloss with an eyeshadow to make wet eyelid effect. Apply over lipstick for glossy finish. And there is so much more you can do with it!