Ive read the guide and it was helpful but I still don't get the cause I don't overwash or use harsh shampoos.Ive even tried coconut oil before as a preshampoo but it didn't do much. I have curly hair so a dry scalp is nrmal but treating it is turning out to be incredibly difficult.I think I might need medicated shampoos. Here are the ingredients of the one I'm currently using: Distilled water, Cocoamidopropyl Betaine, Sodium Cocoyl Isotheionate, Decyl Glucoside, Glycerol cocoate, Hibiscus flower (Rosa sinesis) botanical infusion, Rosemary (Salvia rosmarinus) essential oil, Vegetable glycerin, Polyquaternium 7, Sorbitol, PEG-150 Pentaerythrityl Tetrastearate, Guar hydroxypropyltriammonium chloride, Phenoxyethanol, citric acid.