All official Sigma Beauty brushes will include the following:
- Laser engraved logo
- Patent No. D718060 or ‘Patent Pending’ depending on brush manufacture date
- Manufacturer serial numbers may be stamped in ferrules depending on manufacture date, this was recently implemented to further ensure authenticity
Sigma is able to guarantee authentic Sigma products when purchasing from our direct website at SigmaBeauty.com or from an authorized retailer. You can view a complete list of our authorized retailers here.