GK Hair Developer 20 Volume 150ml

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GK Hair Developer 20 Volume 150ml is the oxidant used alongside GK Hair's Juvexin-infused cream colour range.What it does20 volume is the standard choice for depositing colour at t he same level, covering grey, and lifting around one to two levels. It is the developer most permanent shade work is built on.Best suited to Grey coverage services Depositing at the same level or slightly lighter Everyday permanent colour applications Product details Strength: 20 volume (6%) Size: 150ml For use with GK Hair cream colour Professional use Mix with your chosen shade following the ratio on the colour packaging, and complete a strand test before a full application. Higher volumes lift further but are harsher on the hair. Match the developer to the service rather than the target shade alone. Explore more: GK Hair range. Show more