NOVELTY - The product security element (10) has an interactive releasable authenticity marking portion (20) that is incorporated with reversible directional effect pigments which are encapsulated in a microcapsule (22). The reversible directional effect pigments are essentially and freely rotated in the microcapsule by an external magnetic field, such that the authenticity marking portion shows a visual and/or a machine recognizable image change during the interactive release. The microcapsules incorporated with reversible magnetic alignable effect pigments are brought into a substrate.    USE - Product security element such as trademark protection label on food packaging product, electronic article, battery, wrist watch, mobile telephone and on data carrier such as compact disc (CD), DVD or BLURAY medium, blister packaging or mold element of branded article, plastic film used in plastic card or in value document such as identity (ID) card and credit card, seal or originality closure for bottle or box (all claimed). Can also be used as visa sticker for immigration authority, custom seal for alcohol and cigarette, label for pharmaceutical product, seal for official documents such as tax stamp and certificate, and as decoration of branded articles such as pocket and leather goods.    ADVANTAGE - Since the reversible directional effect pigments are essentially and freely rotated in the microcapsule by an external magnetic field, the authenticity mark usually shows a homogeneous image impression. The product security elements are produced with less effort and at lower cost.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) a method for manufacturing product security element; and    (2) a product security arrangement for securing product to-be protected with product security element.    DESCRIPTION OF DRAWING(S) - The drawings show a schematic view and the cross-sectional views of the trademark protection label.    Trademark protection label (10)    Label substrate (12)    Replacement indicator (14)    Interactive releasable authenticity marking portion (20)    Microcapsule (22)