Velym Toothpaste 100 ml aluminum tube The whitening action is due to micronized silicas with controlled particle size. The action is cleaning with low abrasive power. PLAQUE AND CAVITY PREVENTION composed of Usnic Acid and Echinacin B in a synergistic proportion. NEUTRAL pH does not alter the mouth's pH because it has a controlled neutral pH value. VELYM FLAVOR uses a special blend of essential oils from Piedmont mint. Paraben-free, colorant-free, gluten-free, nickel tested.