This is probably a stupid question, but I am quite tempted to get a DIY Brazilian kit and wondered if it was possible to skip the hair dryer bit? I have shoulder length curly hair and usually wash it in the morning and leave it to dry naturally (I actually don't own a hair dryer). If I want to straighten, I do it in the evening once it is dry. Could I follow a similar routine with the kit, or it the heat necessary to lock in the keratin just after it has been applied?
Thank you!