Because coffee dye doesn’t last as long as chemical dye, you may want to touch up your color regularly. To do this, fill a spray bottle with cooled black coffee, as strong as you can make it. Once a week, mist your hair all over after shampooing. Let it set for 10-20 minutes before rinsing with warm water.
Growth and Health
To use coffee routinely for hair health and to stimulate growth, make a custom product with two parts of your favorite conditioner to one part espresso. Mix until thoroughly combined. The conditioner should appear brown. Use the product as usual after shampooing. Gather your hair into a shower cap for 15-20 minutes before rinsing.