Natural, Organic Clean label ingredients for solid oral dosage forms. AquaPolish® Natural colored, free of titanium dioxide (TiO2) A wide range of natural colored AquaPolish® film coating formulations without titanium dioxide and iron oxides are available. Results of light stability studies approved that the measured color deviations to the reference tablet (not exposed to sunlight) are within our specification of ΔE < 3.50. Formulated with substitutes for whitening, it is possible to replace TiO2 without losing the usual opacity and brightness on your product. Also free of talc, synthetic polymers and colors.