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