Seems like a silly question but what do you mean by moisturising? Neither olive oil nor silicones add moisture (humectants = water) they repel water so are more like anti humectants. If your hair has changed, maybe it's response to proteins has too?

Are you considering your hair properties and humidity/ dew points in your choice of products? You products contain glycerin and shea butter, either of those cause problems for some curlies.
2a-2c, medium texture, porous/ colour treated. Three years CG. Past bra strap length heading for waist.

CO-wash: Inecto coconut/ Elvive Volume Collagen
Treatments: Komaza Care Matani, coconut/ sweet almond/ fractionated coconut oils, Hairveda Sitrinillah
Leave in: Fructis Sleek & Shine (old), Gliss Ultimate Volume, various Elvive
Styler: Umberto Giannini jelly, Au Naturale styling gelee
Flour sack towel, pixie diffuse or air dry.
Experimenting with: benign neglect