3. INVENTORY

The Company regularly monitors its inventory levels to identify inventory that may expire or has a cost basis in excess of its estimated net realizable value, and records write-downs for inventory that has expired, inventory that has a cost basis in excess of its expected net realizable value, and inventory in excess of expected sales requirements. Any write-downs of inventories are charged to cost of revenues in the consolidated condensed statements of operations and comprehensive loss. During the three months ended March 31, 2026 and 2025, write downs for expired inventory were $3,496 and $35, respectively.