By Jackie Summers

From product selection to timing to test stranding, it’s the little things that add up to stellar color service. Here are 13 insights—all tried and true—into the craft of haircolor that will help you stand out from the crowd.

1. Demis vs. Permanent Color
Nowadays there are many great choices within the demi-permanent category—some are acidic/deposit-only formulas while others are slightly alkaline and provide a moderate amount of lift, and therefore, grey coverage. Demis are always kinder to the hair than permanent color, so whenever possible, consider using them on your clients, says Redken Haircolor…