This is the newest formula from QOD on which you can wash your hair after only 6 hours. I am the owner of Keratin4u distributor of QOD products in the USA and I tested the product and can share that it's great. Any questions don't hesitate to ask.
I've used it, and at least so far I really like it. After treating/flat ironing I hug around the house for the evening and waited until the next morning to wash out. It's only been a couple of weeks so I can't speak to how well it hold up, but so far I really like it.
I really liked how quickly you could wash it out. I loved the results at first, but after 2 weeks it really lost its power. I also colored my hair at the same time, so that could be the problem. Going to redo it this weekend, will see what happens!