I've used various black dyes for my soy wax candles developed by so many different makers that I've almost given up on ever being able to make an onyx-black candle. The major problem I've always had with black dyes is that no matter how much dye I used I'd only accomplish *maybe* a dark gray. Then I decided to use this one. Yes, I had to use a lot BUT, when I saw the finished product in its glass jar - it was worth every drop. Now, I have an ink-black or onyx - if you will - colored candle that I couldn't be happier about.
For the smell...well, every dye has a smell and if you've ever smelled shoe polish, this is what it smells like, but I've found that when the candle cured, the smell was almost non-detectable. Keeping in mind these were freshly cured candles, I believe that when the candles age, the smell would dissipate completely. I also made a batch of black scented candles in which I noticed that the liquid wax held none of the dye smell and when it cured I couldn't detect a dye smell at all.
In any case, I'll be purchasing more soon because after months of searching for the right black dye, I'm extremely pleased with this dye and I'm sure so will my customers.