How to prevent color phasing and bleeding/mixing when creating layered anhydrous stick formulations using oil-soluble colors?

Does MySkinRecipes have cosmetic colorants that are soluble in perfume/alcohol and do not precipitate? Could the R&D team please provide recommendatio...

Could you please tell me which ingredients can help with uneven skin tone on the arms? Thank you.

For a water-based lip tint formulation, what type of colorant should be used to achieve a staining effect on the lips?

Based on the available products, are there colors for mixing with Perfume? If so, how are they used?