The porosity and tenderness of Type 4 hair means extra care must be taken
Semi-Permanent Hair Color
We've got tons of hair coloring tips, ideas, and techniques. Learn everything from how to choose a hair color to removing coloring that you may not like. Find information on semi-permanent hair color here. Semi-permanent hair color is terrific for hair-color first-timers. It washes out in 6 to 12 shampoos and contains no potentially damaging peroxide or ammonia. Below we've got articles, how-tos, tips and discussions about semi-permanent hair color.