I had a coupon for a bottle of Garnier Fructis Sleek & Shine Weightless Anti-Frizz Leave-In Serum, so I just had to try it. My first thought was that it smells absolutely divine! I don't know what it is, but it just brightens my morning as soon as I smell it on my hands! But even better than that, it makes my dark, straight hair so shiny! Some other serums I've tried just make my hair look greasy, but Garnier Fructis got it right and it really just makes my hair shine without being slimy. I just pump the bottle twice into my palm, rub my hands together, and apply to the bottom half of my hair....