Celestine Blue™ Professional Semi-Permanent Gel Hair Dye - DEEP INDIGO BLUE • Rich, Deeply Pigmented Vibrancy That Lasts Through  40+ Shampoos  • Semi-Translucent Gel Formula for a Stained Glass-Like Application  • Gel Base Aids in Color Placement Accuracy  • Unique Delivery System Guarantees an Even Distribution of the Pigment, Higher Deposit and Absorption of the Dye Molecules, Resulting in Superior Color Longevity • Dye Molecules Mimic The Hair Shaft for Maximum Color Deposit  • Lactic Acid Conditions, Moisturizes & Strengthens Hair to Prevent Breakage • Castor Seed Oil Helps Control Split Ends & Improves Moisture Retention to Create Smooth, Shiny, Healthier-Looking Hair  • Gentle Acidic Formula Helps to Close the Hair’s Cuticle and Lock-In Color  • No Developer Required  • Fades True to Tone • Easy Blend-Ability to Create Endless Color Possibilities  • PPD & Ammonia-Free    • Globally Compliant   • 100% Vegan, Cruelty-Free Formula Available in 3 oz. Aluminum Tube