Cosmetics Formulation Development

Try using Stannous fluoride in the mount spray, but found that precipitation occurs, the pH of the formula is at 3, how to fix it?

Hello Stannous fluoride is soluble and precipitates in a very short time. There must be no water in the formula because Stannous fluoride is active when mixed with water in toothpaste formulations Stannous fluoride , replace water with Glycerin

And if it's in the case of the sutra mount spray How can I fix it? because there must be water in the formula

Hello, use another ingredient such as Sodium Fluoride instead.