The ChromaSilk VIVIDS Neons hair color collection is a semi-permanent hair color that is non-oxidative and can be used without developer. It is the industry's largest semi-permanent color collection. To avoid staining, it is recommended to wear gloves and avoid mixing with developer. For optimal results, use PRAVANA Pure Light series to pre-lighten hair to the indicated lifting level. Rinse hair with cool water and condition with care regimen for 20-30 min at room temperature.