Our nail care roller bar contains tea tree oil and lavender oil. It can effectively kill bacteria, inhibit fungal growth, and quickly relieve gray nails. Penetrate into the root of the nail to promote healthy nail growth and repair damaged tissue. The method of application is simple: gently apply the tip of the stick to the surface of the affected nail and the surrounding area, covering it evenly. And can penetrate the base of the nail, against nail fungus; Repair damaged nail beds and promote nail growth; Deep penetration restores nail shine.