I colored my ashy brown sisterlocks a rich black last week using a herbal hair color system called Naturcolor. I really liked the results my locks were very soft afterward. Not as soft as henna but definitely softer. I missed a portion of lock or two in my haste but only used half so I will get them later. It covered my 3 or 4 premature gray hairs really well. My camera is down so I made a quick after video and below is a good natural light shot of my before hair color.