I have been gone again for forever because I'm comfortable with my hair routine, but I just discovered something and wanted to drop it.
Aveda's smooth infusion prep styler + a similar consistency leave-in, sealed by crn almond jai, sealed by aveda smooth infusion naturally straight, set on purple rollers under the dryer for maybe 1.5-2 hours, then bantu knotted (two big knots) overnight has given me (better than my) blow dry straight hair that has lasted a week in Bahamian humidity. I got through a day that it rained so hard the streets flooded by flipping it up into a bun with a scrunchie. At the end of the day when the sun came out I took the scrunchie off and my hair flowed back down like nothing.
All week people have been asking my regimen, whether my hair is real, and whether my hair is blow dried. All I do at night is rub some shea butter on the length and ends, lightly finger detangle, and bantu knot in 2 or 3 knots. In the day I wear a large puff cuff so my hair is pulled back but not quite into a pony tail.
Anybody fighting humidity, this stuff is the answer.