OCS No Limits semi-permanent colours are ready-to-use, pre-mixed formulas that can be applied alone or blended to create custom shades. Free from oxidative pigments like PPD, PTD, and TDS, they’re ideal for sensitive skin and leave hair soft and nourished. Available in eight vibrant and four natural shades, they can also be mixed with OCS masks to create pastel tones or toners for pre-lightened blonde hair.