Both oleic acid in many natural oils that you apply and sebum from your scalp are known irritants in the most common cause of dandruff, seborrhoeic dermatitis. Please, get a diagnosis rather than trying out home remedies that can easily worsen the problem.
2a-2c, medium texture, porous/ colour treated. Three years CG, growing out mechanical and chemical damage = breakage and very high porosity. Past armpit length heading for waist.
CO-wash: Inecto coconut
Treatments: Komaza Matani, coconut oil, Hairveda Sitrinillah
Leave in: Fructis Sleek & Shine (old), Gliss ultimate volume, Inecto argan
Styler: Umberto Giannini jelly, Boots Essentials gel
Experimenting with: going back to basics