Our oral and dental cleaning pen contains panthenol, PCA sodium, and spicy lotus leaf extract. It can decompose melanin in teeth, reduce dental problems, and maintain fresh breath. Its usage is simple: twice a day, once in the morning and once in the evening, apply by hand with a toothbrush, wait for 5-10 minutes, and rinse with water. After use, tooth stains were removed, teeth were cleaned, and breath was refreshed.