Sonavi Whitening Foam to Ultra-fine Deeply Clean Gums Stain Removal Foam Teeth Whitening Kit
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How to use: 1. Press 1-2 times, send the foam directly into the mouth cavity. Spit out after 10-15 seconds, then rinse your mouth with clear water to refresh your breath. 2. Send the foam directly or into the cavity by the toothbrush, rinse your mouth for 10-15 seconds, then brush your teeth with the toothbrush for about 3 minutes, and rinse your mouth with clean water.