I didn't suggest you cannot use oils, simply that they do not add moisture. Ingredients that may help your hair feel in better condition (assume this is what you mean by feeling moisturised?) include panthenol, ceramides, cationic surfactants and fatty alcohols, anything at pH 4.5 to 5.5.
Many curlies have problems with glycerin in high dew points so might be worth experimenting with a glycerin free routine; shea butter does not penetrate and can build up so you might clarify (or chelate if you have hard water/ go swimming).
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