I was recently diagnosed with an allergy to a preservative that is widely used and scarcely advised of. I was so excited to find your line of Malibu C products does not have this ingredient and it also makes my hair feel amazing!! I use the Color Wellness Shampoo and Conditioner. I used to well up with tears reading ingredient lists to only be able to find a single shampoo that made my hair dull and lifeless. Thank you, thank you, thank you (you made me dance in the store)!