
How to Choose Hair Color Developer Volume, From a 10-Volume Deposit to Lifting in Safe Rounds
Quick answer Choose developer by how far you're moving from your starting level: 10 volume to deposit, match or darken, 20 for gray coverage or one to two levels of lift, and 30 for about three levels. Leave 40 volume to salons and always confirm with your brand's lift chart. Every permanent hair color kit […]









