Authenticity, end-to-end
Gren exists for one promise: every product is real. We're an authorised aggregator, not a reseller of grey-market stock.
We buy direct
Every product is sourced directly from the brand or an authorised distributor. No grey market, no parallel imports.
Every batch is registered
Before a batch ships, we register it in our system. The batch code on your packaging is your proof.
Verify anytime
Use the Verify a Product page or scan the QR on your packaging - before or after purchase.
Our counterfeit guarantee
If any product you receive from Gren is found not to be authentic, we'll refund it in full and investigate the batch. Report it at Verify a Product.
Authenticity FAQ
How do I know a product is genuine?
Enter the batch code from your label at /verify.
Where do your products come from?
Direct from the brand or its authorised distributor - never grey-market.
What if I think I received a counterfeit?
Report it at /verify#claim with photos; if confirmed, you get a full refund.
Do you sell testers or expired stock?
No - only sealed, in-date, brand-authorised products.