This is a comparison between a Gillette® Fusion™ cartridge and a counterfeit. To determine if your cartridges are counterfeit, it is best to compare the serial numbers. Please click on images to view in a higher resolution.

All Gillette Fusion cartridges will have serial numbers located behind the blades under frame as indicated in picture to the left. The serial number will consist of one letter with four numbers on the left side and one letter with four numbers on the right side. This cartridge is inscribed with 2605Z on the left side and I4303 on the right side. The number 2 on left side is not visible in this picture. The Gillette Fusion 4 cartridge pack used in this comparison has the same serial number for all cartridges.

The counterfeit Gillette Fusion Power cartridge on the left will have no serial number on its cartridge frame as indicated in this picture.

There is a possibility counterfeiters will begin to print serial numbers on their cartridges but unlikely now. The next best way to determine if your cartridges are counterfeit is to inspect and compare the five razor blades.

The Gillette Fusion cartridge blades will be in perfect alignment as indicated by the picture to the left. The authentic blades are brighter in this picture and have a much cleaner appearance in comparison to the picture of the counterfeit cartridge below. To the touch, the blades are not loose in comparison to the counterfeit and are firmly set into the cartridge frame.

The counterfeit cartridge blades are out of alignment and loose to the touch. Also, notice the many dust particles and hair fibers covering these blades. Upon close examination of this picture, you will see rust on the third blade from the top of cartridge on right side.

Thanks to 8499guy who mailed to me one of his counterfeit Gillette Fusion cartridges purchased on eBay from joyjoycee and used for this comparison.