How to use Evian spray?

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Did you hear of Evian, a kind of spring water from the Alps in France? It's said the water is very good for skin to supplement the moisture. I have oily skin on my face. Lack of water is one of the problem for this problem. Hence, I bought one bottle of sray in this brand and used for months. I didn't find its obvious function though. Anybody has the same expience like mine? Anybody can suggest the best way to use it? Or are there any other products good for moisturizing? Tks all for advice.