Revlon ColorSilk Digitones™ Permanent Hair Color is formulated with HD Color Technology for expressive, HD color and intense shine in vivid shades. A no-mess, no-drip gel formula makes it easy to use from root to tip. And since this formula is ammonia-free* and infused with Keratin, it leaves your hair in even better condition than before you colored it.†*Formulated without adding ammonia.9 out of 10 women tested found Revlon ColorSilk Digitones™ left their hair looking healthier.