I've used it but unfortunately, I won't be of much help. My former stepdaughter works at Ulta and gave me a kit that had the shampoo, conditioner, and the Spiral Down. I used this before I found this site. I loved the scent of all the products!
As for the Spiral Down and how it affected my hair, I really can't remember because at that time I was blow drying my hair straight . I don't even remember if the ingredients are CG or would be okay for CG-modified. If they are, I would definitely get it again and try it because of the scent and the feel of the products (very luxurious from what I remember).
Sorry I couldn't be of more help .
CG-modified since 4/05 2b/3a and 3b on occasion! Products: The hair aisle in my own cabinets.
Best definition winner: KCCC
Best volume winner: LOOB