So Silver All-In-One Toning Leave-In Spray - Matrix So Silver All-In-One Toning Leave-In Spray is a buildable color depositing formula to neutralize unwanted yellow undertones in between salon visits and prepare hair for styling. Enriched with conditioning agents and neutralizing dyes to deliver 10 beautifying benefits.BenefitsBoosts shineTones/neutralizes yellow undertonesControls frizz and flyawaysHelps with hair manageabilityImproves the appearance of split endsDetanglesSmooths hair cuticleAdds moisturePrepares hair for stylingPrevents breakage from brushing - So Silver All-In-One Toning Leave-In Spray