Receive evaluations from hidden experts on distinguishing between authentic, authentic and counterfeit products.

[Jjinjjang service]

● Request for evaluation of genuine and counterfeit products
Are you feeling uneasy about products you purchased overseas?
I received it as a gift, but the product looks flimsy.
I bought it used, but I want to check if it is genuine.

With hundreds/thousands of luxury products, is there really an expert who can distinguish them all?
Receive various evaluations from experts who have joined Jjinjjang.

● Product I requested evaluation
Check information about the registered product for which you requested an evaluation.


● Products I evaluated
Check information about the registered evaluation product

● Good to know
Provides various information that you need to know when purchasing luxury goods

[Optional access rights]
● Camera: Used to take pictures.
● Storage space: Used for file attachment or file storage functions

[customer service center]
● Website: http://support.jjinjjap.com
● Phone number: 1661-7891
● e-mail: [email protected]


[Frequently Asked Questions]
Q. Is it possible to provide proof of genuine or counterfeit products?
A. This service is a community-type service and is provided based on the personal opinions of users. 
 Accordingly, evidence based on personal opinion is not possible.

Q. Is it possible to change the ID?
A. ID change is not possible.

Q. How do I sign up for membership?
A. If you look at the top left, there is a “Sign up” menu.
If you fill out your registration information and click Sign Up, you will become a member immediately.
When signing up, you must enter your email address before signing up.

Q. How do I cancel my membership?
A. If you go to settings after logging in, there is a membership withdrawal function.
After canceling your membership, you cannot re-register with the same ID.