Xanthan gum is a film former so can encourage the cuticle to lay flat and has light hold of its own, it's gummy or jelly like. You should be able to get it in a grovcery store.
1 MINUTE XANTHUM HAIR GEL - YouTube
Corn starch will thicken but not film form and potentially dull your hair. If you use dry shampoo you wipe or brush the excess out, right?
Check out the links I posted earlier to see how the gel behaves.
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