I went from being barely SL to a smidgeon away from APL this year. I don't measure my hair or anything, but I'm pretty sure that's 5 inches or more
Anywho, for about my first 9 months here I did the typical stuff. Washed and dc'ed once a week, moisturized daily, baggied nightly, wore protective styles (UPA clip, assisted doughnut bun, snoods, etc), stretched 12 weeks between relaxers, and I used Lenzi's Request mixed with Capsaicin every other day. When I got too much new growth, I would flat iron my roots on wash day (after my hair airdried) and keep it like that till next wash day. I took vitamins too, but not long enough to see results. Well, except for the MSM, I saw results from that. MSM made my new growth so easy to manage. And when I relaxed it, it was so shiny, smooth and pretty.
For the last 3 months, I've switched up my regimen. Now I do daily co-washes and I dc with a hooded dryer twice a week. My hair loves moisture, so that's what I give it. After I co wash, I apply my leave in and put it back in a bun till the next day. I still stretch relaxers, but I'm not taking vitamins (I'm preggo) and I hardly ever use heat (probably about 2-4x's a year) I stopped using Lenzi's Request a while ago but I'm gonna jump on the mn bandwagon in a few days
Sorry so long, but you asked