GLO guarantees your Glo910 device for a period of ONE (1) YEAR and THREE (3) MONTHS for the heads from the date of purchase, covering any manufacturer related problems resulting from everyday use of the product. 

The warranty covers working parts that affect the function of the device. It DOES NOT cover cosmetic deterioration caused by fair use and damage caused by accident, misuse or neglect. Any attempt to open or disassemble the device (or its heads) will void the warranty.

Warranties are only valid for items returned within the warranty dates and purchased through www.us.glo910.com or authorized resellers.

Be aware if you purchase GLO from any location not listed as authorized, the product(s) may be counterfeit, defective, and possibly harmful to use. Unfortunately, GLO can take no responsibility or warranty any products purchased through unauthorized sellers such as, but not limited to, Ebay.com, Amazon.com (only in our GLO official store), Alibaba.com, DHGate.com...