What are her hair properties and what will be the humidity/ dew points she will be dealing with? CURLS is a widely available brand now being stocked in Walmart and Target and they do a low-poo. They also have massive bottles of their regular line on the CURLS website.
CURLS curly hair products in your local Target store
curls curly haircare products in walmart
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