Kala Kola Hair Color 10 Blue BlackTransform your look with Kala Kola Hair Color 10 Blue Black. This permanent dye delivers rich blue black tones and full grey coverage, while olive oil and vitamin E nourish and smooth your hair for a healthy finish. Features Enriched with olive oil and vitamin E for moisturized, frizz controlled hair Delivers 100 percent grey coverage with deep, vibrant color Gentle, ammonia free formula for regular use Leaves hair smooth, conditioned, and vibrant