I have 4b/4c hair and the last two inches are consistently dry and frizzy- i think it is high porosity. It's been that way from childhood to adulthood. I use sulfate free shampoo, deep condition weekly , and moisturize daily being sure to seal the ends. I trim every 6 months and chelate every 3 months. My ends will feel moisturized, and yet wiry! Also, when I moisturize , the ends will pop under my fingers:( Does anyone know how I may modify my regimen to treat these ends? Any suggestions are appreciated.