Which one do you use?
Infusium 23 (Repairology)
How often?
Sometimes daily, sometimes every 2 weeks. It depends on how my hair feels.
And how do you incorporate it into your regimen?
I mostly spray it when I have braids. Otherwise, whenever I need a quick protein boost (and I don't have time to DC), Infusium is a temporary aid for mushy/weak hair.
Do you only use it while you're rinsing out the relaxer, or do you use it in between relaxers, or what?
I use it as a relaxed head (moreso than when I was natural), but I do not incorporate it in my relaxing routine.