Review Of How Soon After Coloring Hair Can You Wash It References. Web it is generally recommended to wait at least 24 hours before washing your hair after coloring it. O’connor says it's best to wait at least 24 hours (though, he does say longer is better) to wash your hair.

How long should you wait to wash your hair after coloring it? If you must dye it within this timeframe,. Web while it is possible to dye your hair 12 hours after washing it, waiting a bit longer is usually better for optimal results.