The FOSHU claim is “to suppress the formation of dental plaque and keep gums healthy”. The active agent is Macrocarpal C, an eucalyptus extract. The tablets are sold in the high-end range for 138 Yen for 14 tablets.
https://www.lotte.co.jp/products/brand/xylitol/oratect/
Lotte launches “Aura-detect gum”, a FOSHU chewing gum based on eucalyptus extract