For me it was a moisture issue. I haven't had that problem since last year.
4a/b Texlaxed hair w/ highlights. Medium texture & high porosity.
HG's: CJ Daily Fix, Bobeam Cheris Hibiscus shampoo bar, KC Spiral Spritz, Knot Today, CJ Rehab, KBB LL Hair Mask, Cassia, KCCC, oil blend of Avocado, Camellia, Jojoba, & Meadowfoam oils
SL APL BSL MBL