Skin1004 Madagascar Centella Tone Brightening Capsule Ampoule Serum 30 mlWhat Does Off Spec Stock Mean? Off Spec Stock (Off Specification Stock) refers to products that are original and unused, but they do not fully meet the manufacturers standard specifications. This means the items may have minor differences or imperfections, such as: Slight packaging defects Minor color differences Mild fragrance or texture variations Small printing or labeling mistakes Product consistency not matching 100% of the approved batch Slight