Hi, I’m looking for a good hair colour brand which is free from Ammonia, PPD, peroxide and other harsh chemicals. All this while I was using the henna and indigo combination to cover grays. But now it’s getting really difficult to use henna because of weather and other reasons. It’s been more than 4 months since I used henna. I am looking for something quick and simple but which doesn’t cause any side effects like more grays or hairfall. Please suggest!