【日本直郵】CLEARDENT 牙菌斑顯示劑 兒童成人口腔牙齒顯示染色劑 12枚

Product Description: Free of additives with natural food dye as the active ingredient, making it safe to ingest.
Directions: 
1. Take one tablet into mouth and roll over teeth with tongue until dyed red.
2. Spit out the tab (Gargling is not necessary).
3. Check in the mirror for any plaque that has been dyed red.
4. Gently brush teeth that have accumulated plaque and been dyed red.