Authenticity is the foundation of the upside. We staff in-house professionals that ensure every item sold is 100% authenticated and in beautiful condition.

All items are put through a multi-point, authentication process by our luxury experts. We inspect all goods for appropriate brand markings, date codes, serial tags and hologram stickers. Everything passes through our strict authenticity tests before it is curated into daily sales.

NOTE: the upside does not accept fake or counterfeit merchandise of any kind. If we suspect that a submitted consignment is inauthentic we will contact the consignor for proof of purchase.

Brands sold on the upside are not partnered or affiliated with the upside. However, we fully cooperate with brands looking to track down the source of counterfeit items, which includes revealing the contact information of consignors submitting counterfeit goods.