I have soft curly and wavy hair so I left the treatment in my hair for about 35-40mins. After 48hrs of not doing anything to my hair I washed and left the conditioner in my hair for 30mins then washed it out. I also used the Brazilian Keratin Treatment flat iron spray to blow out and flat iron my hair.
The process can be a little much but not that bad and my hair came out feeling soft and Amazing.
I think this product great for women of color hair texture. :-)