2 teaspoons of baking soda
1 teaspoon of lemon juice
Instructions:

Add the baking soda and lemon juice to a bowl.
Mix well until you get a smooth paste. Adjust the consistency by adding more lemon juice if necessary.
Apply the paste to your face, neck, or any other affected skin area.
Let it sit for 15 minutes, then rinse with warm water.
This method not only removes age spots but also cleanses the skin of dead skin cells, acne, and blackheads. For larger areas of the body, simply increase the amounts of each ingredient proportionally.