Dark, Crisp Line without the Dye

I'm trying to get a dark, crisp line up without using Begin dye. My hair is naturally pretty dark, and the line is crisp, but not always as dark and crisp as I want it be. Does anyone know of a product that can really bring your LINE out? I went to a barber at another shop for a line up a few weeks ago, and the barber brushed in some Royal Crown Stick Pomade Jet Black around the edges of my hair. Has anyone else ever used that??? ANy other suggestions?

well my hair is nice and dark any what i do is get a 2# cesar with the grain and my barber edges underneath my hair (soo when you lift up my hair you see the baby hairs edged up too) then edges the top part...then at night before you goto bed put some pink oil or a lil grease and it ill shine and be nice and dark...then when you going some where sprey a light oil sheen on top...........but the key is your barber has to do a real real nice edge.......

I used to use black wax to get that look it works aight like using the royal crown but now i just dye my hair...

post a pic of ur line. sounds like sumthin i wanna do.