Aveda Color Catalyst is a liquid conditioner developer with pure vegetable aroma. Decoloration-resistant formulas are up to 96% natural in origin for essentially harmless results with our exclusive blend of organic botanical oils. The conditioner developer that features a pure-smoke aroma of rose, lemon, mint and other pure flower and plant essences. The liquid developer comes in two volumes depending on the desired clarification level and is excellent for adding to each Full SpectrumTM permanent formula for accurate hair color results.