Matrix Soboost SoColor & Color Sync, Hair Color, Additives - Option : Blue

What It Is
Color additives intermixable across SoColor and SoColor Sync hair color that provides pure, bright tones.

What It Does
Exceedingly pure, bright tones, for intensifying a color result or for neutralizing brassy effects-from subtle to dramatic. SOBOOST shades will provide you unlimited customizable color results.

• Blue: Use when lifting to neutralize unwanted brassiness and when darkening to add cool tones
• Red: Use to intensify your favorite red, red-violet and violet formulas

What Else You Need to Know
• Unlimited customizable color results
• 2 pure, bright tones immediately intensify or neutralize color results
• Intermixes easily with SoColor and SoColor Sync for maximum flexibility