Before applying dubbin, ensure your leather boots are clean and dry. Use a brush or cloth to remove any dirt or debris. 

Apply a small amount of dubbin to a clean cloth or sponge. 

Gently rub the dubbin into the leather, working it into the seams, stitching, and any areas prone to water damage. Dubbin wax will leave an oily film on the leather, so use it sparingly to avoid making a mess. 

Repeat the application process as needed, ensuring the dubbin is spread evenly. Allow the dubbin to penetrate the leather for 30-60 minutes. 

(Optional) After the dubbin has had time to absorb, buff the boots with a clean, dry cloth to remove any excess and reveal a subtle shine.