Cosmetics Formulation Development

Hello, Acid Violet (Water Soluble Dye) can be mixed with baking soda + Citric Acid to make a bath bomb? Will it have any effect on the user?

Hello, the colors that are sold by the FDA are allowed to be used in cosmetics. It's not harmful to the skin, but check in the formula to see if it's appropriate, for example the formula's pH when dissolved in water. by water-soluble powder color It will have stability problem when in alkali.