I used Jazzing in Ruby Red. I previously lightened my hair with Clairol luminize
Yes my hair is naturally curly, here are a few before pics (click to enlarge):
dry hair
And here is a comparison shot from my first BKT (wet hair):
The curls were a lot looser but after a few washes it goes almost back to my normal texture but it's just more silky and smooth.
You can still wash n go. My hair is just a lot smoother and has less shrinkage.
I think I'm gonna let this application completely wear off just to see what happens.