Popsugar Beauty Beauty News What Is Double Process? Literally Everything You Could Ever Want to Know About Double Process Hair Dye January 6, 2018 by Alaina Demopoulos First Published: October 5, 2017 View On One Page Photo 12 of 25 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 12 After 20 minutes under the processor, Jeanise washed out my hair and revealed the completed first step in my process. Previous Next Start Slideshow Beauty NewsBeauty TrendsBeauty How-ToHairHair TrendsHair Color