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. Benefits: Tones/neutralizes yellow undertones Adds moisture Boosts shine Detangles Controls frizz and fly-aways Improves the appearance of split ends Prevents breakage from brushing Smoothes cuticles Helps with hair manageability Prepares hair for styling What else you need to know: This product is stain-resistant and transfer-resistant. Can be used as often as you wet your hair. For additional toning use in combination with So Silver Shampoo and/or So Silver Triple Power Mask