摘要 |
An amorphous silica having an RDA value of between 40 and 70, an oil absorption capacity of between 90 and 145cc/100g and a moisture loss of less than 7% w/w, can be incorporated at a 10% to 25% loading into a transparent toothpaste having a refractive index of below 1.445, this toothpaste having an RDA value of less than 60. |