Why wool fat is used in the preparation of simple ointment?

Wool fat, also known as lanolin, is used in the preparation of simple ointments due to its Excellent emollient properties, which help to moisturize and soften the skin. It acts as a natural occlusive agent, creating a barrier that prevents moisture loss while allowing the skin to breathe. Additionally, lanolin is well-tolerated by most skin types and enhances the stability and spreadability of the ointment, making it effective for therapeutic and cosmetic applications.