Question: which hair dyes are ammonia free?
Answer: The Best Overall Ammonia-Free Permanent Hair Color. Naturtint Permanent Hair Color. ... 
The Best Drugstore Ammonia-Free Hair Dye. Garnier Olia Ammonia-Free Hair Color. ... 
The Best Ammonia-Free Semi-Permanent Hair Color. Clairol Natural Instincts (Pack Of 3) ... 
An Ammonia-Free Hair Dye That's Also Cruelty-Free.