The warning label says to use in a well ventilated area.  Usually that means it has a potent smell and could be dangerous to inhale.  Well I used the item in a closed area and it had no odor.  It was like spraying water.  It also changed the color of my chestnut brown boots too dark brown.  I was careful not to over use the product as per the instructions on the bottle.  I really don't know if the product was fake or not because I've never previously purchased this product from the manufacturer.  I guess sometimes it's best not to look for the best deal.