I Use the Sebastaian Laminates Cellophane in Red Red. I don't have any before or after pics. I have dark brown/black hair with some grey strands throughout. It coats the hair and make my hair fuller, as far as the color, it looks like deep burgandy when in the sun or bright lights. It will stain the grey hair, giving a orangey/reddish color which I didn't mind. It last about 4-5weeks on me, which reminds me that I am due for another rinse. I am a straighten natural.
When I was relaxed, the color stood out more, maybe because I got on the same day as the relaxer.
I never had problems with this brand, and I have a sensitive scalp. I used Sebastain cellophanes for about 8 years now.