Color gel oils Redken | REDKEN AMMONIA AMMONY FREE PERMANENT COLOR; Color gel oils. Una A color that not only covers gray hair 100% but also rejuvenates it, increasing shine and nourishing your hair. One of its key ingredients is apricot oil, which will deeply nourish your hair. | With these new ammonia-free shades, you'll achieve the most intense and deep results. Una A color that will take your hair to the next level thanks to its formula. | Benefits: | No ammonia. | Covers 100% of gray hair. Rejuvenates gray hair. | Nourishes hair.