06.03.19
US Patent No. 10,226,410 B2 (Hongmei Yang, Haijing Chen, Ross Strand); Procter & Gamble has patented a dentifrice composition that is comprised of water, calcium-containing abrasive, fluoride ion source and arginine bicarbonate. The composition, which has a pH greater than about 7.8, is free of humectants and provides a Mean Fluoride Uptake greater than 550ppm.