Jun 05, 2014 - I've been dying part of my hair red for about two years now and I've gone back and forth between typical drug store semi/demi permanent hair colors like Splat and Manic Panic. Those brands worked well but I would always be stuck dealing with the dye running or rubbing off on my hands and clothing. That was absolutely not an issue with Bigen. Application was a piece of cake as the dye has a perfectly balanced consistency that isn't too thick, but still runny enough for me to make sure I get it evenly distributed. The only issue I had with the Ruby Red dye I got is the fact that it wasn't anywhere near as vibrant as I was expecting it to be. I left it in my hair for about an hour and applied heat for about 15 minutes of that time. All in all it's a decent product-- long lasting, no running-- I just wish the color had come out a true ruby red.