The key distinction lies in the active compounds responsible for their effects. Pepper spray utilizes oleoresin capsicum (OC), a natural oil derived from chili peppers. This substance causes immediate burning sensations in the eyes, skin, and respiratory system. Mace, originally a brand name, historically contained chloroacetophenone (CN), a type of tear gas. While some products still bear the name “mace,” they often also contain OC, blurring the line between the two. Therefore, the defining factor is the active chemical ingredient rather than the product name itself.
Understanding the difference is essential for several reasons. Legal regulations governing the possession and use of self-defense sprays can vary depending on the specific chemical composition. Furthermore, the physiological effects and recovery times may differ between OC-based sprays and CN-based sprays, impacting the user’s ability to assess and manage a self-defense situation. Historically, CN-based tear gas was more commonly used, but OC has gained prominence due to its perceived greater effectiveness and reduced long-term health risks.