Not sure coz I'm buyi'n all my make up n d US but here's the tip: The fake outer packaging is really convincing. It actually looks more real than the real one - it's slightly faded, and has a vintage look because of that. No immediate differences on the front apart from clarity. The little white lines in the black box are barely visible in the fake. The real box is more of a pink, whereas the fake box leans towards purple. In the fake, the grey lines around the box are darker. The fingerprints are totally different. If you look at the first one on both the top and bottom row, you'll see that the real one features a very dark fingerprint on the first box, and an almost-double fingerprint under that. The fake ones are faded, they're different shapes.

2. Look to the right of the bar code - the real one has the product expiry information, the tiny pot with 12m on it to say that this product is good for 12 months after opening. The fake doesn't have that. Just a note about that - it's not mandatory in the US to display expiration dates on labels, so if your product was bought in the US, take the whole item into consideration. The smell, the look, the feel, the quality. Also look for the little registered trademark symbol, that should be there. It's tiny, but it should be there.