This dye is water soluble this means it is a different colour in granular powder from the final colour. Some people 'bloom/activate' in bicarb soda to produce the colour in their bath bombs. You can also mix with a small amount of hot water to activate before putting into your mix. The true magic happens when the concentrated dye hits the bath water and the vivid colours come alive.
CI Name: Food Blue 2, Acid Blue 9
CI Number: 42090
CAS Number: 3844-45-9
Approved for use in all cosmetics.
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