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Kerastase I believe is a sub-product of L`oreal. They have come out with many different brands within the company all with different price ranges.
As you may notice these are the high end products. I purchased this on sale as I had a discount voucher, as good as it is I can`t say I`d pay £20 for this! It is basically a hair oil in spray form which protects it from the sun, and has a gorgeous smell AND glittery formula.
It is very light and better to use during summer than a cream which could weigh your hair down.
I would recommend this a lot, however I have posted some other products that have a similar effect on your hair