If you want to sell your own brand products on AliExpress, you can authorize your brand by following the steps below:

1. Register a trademark: Register a trademark in your region to prove that you are the owner of the brand on AliExpress.

2. Join the AliExpress Brand Program: AliExpress offers a brand program that is designed to help brand owners protect their intellectual property rights and promote and sell on AliExpress.

3. Provide brand authorization documents: AliExpress requires brand owners to provide brand authorization documents to prove that you are the owner of the brand and have the right to sell products on AliExpress.

4. Complete brand certification: AliExpress also requires you to complete brand certification to prove that your brand is real in the market and that you have the right to sell the brand's products.

After completing the above steps, you can sell your own brand products on AliExpress.