Results depend on starting hair color and texture, and porosity. Original Kits include bleach because chemically lightened hair will have brighter and longer-lasting results. Splat Hair Colors are a semi-permanent direct dye meaning it sits outside the hair surface and dyes the cuticle of the hair. Think of this as the paint of hair color because there is no chemical reaction from developers and oxidative hair color. Less damage and more fun!
Pro Tip: Splat Hair Color may temporarily stain skin and permanently stain the fabric of clothes, towels, and bedding, etc. Use petrolatum jelly on your face and neck before applying color to avoid staining.