Deva is heavy on the glycerin, Recoil heavy on the polyquats, might be either. Choose your ingredients/ products based on your hair properties and dew points/ humidity.
What do you mean by 'wash' once a week, you use a foaming type shampoo or you co-wash once a week?
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.
Treatments: Komaza protein, Komaza Matani, coconut oil with sugar syrup. Hairveda Sitrinillah
Leave in: Fructis Sleek & Shine (old), Gliss ultimate volume
Styler: Umberto Giannini jelly, Boots curl creme, Rockin RInglets
Experimenting with: Mega-Tek, Curl Harmony reviver, Elvive Full Restore 5.