Fragrance Formulation Development

If you want to color in Reed Diffuser Base ( Type 1) Can I put color? And what kind of color should I use?

Hello, try to add สีละลายน้ำ should be able to dissolve in Reed Diffuser Base . Also, not every color is the same. water soluble red may be able to dissolve in Reed Diffuser Base . But the green color may not be dissolved. (including the solubility proportion) must be tested.