Cures mental stress, insomnia, etc very similar to Ayurvedic remedies like Shirodhara which focuses on dripping oil on the forehead.It is scientifically proven that application of Tilak clears sinuses. Medically the joint also has a nerve (trigeminal) that when squeezed clears sinuses by increasing the blood pressure to the nose.Applying a Tilak on the forehead also helps to get a wrinkle free and younger skin. The supratrochlear nerve which interfaces with a few filaments and muscles of eyes and skin is stimulated when mild pressure is applied to the center of the forehead. It diminishes dark circles by providing oxygen and boosting blood pressure, while the eyesight enhances and also skin becomes flawless. .