I've been wondering about this too. Cowashing mostly works for me but sometimes my hair looks flat on top... I've been considering adding the teeniest bit of my low-poo to my co-wash, so it would be mostly YTC with a smidge of Renpure Organics.

I imagine this would work, but hopefully someone else chimes in!
whurly girly (2C/3A).
thick; medium/coarse; low porosity.
hair that is drier than the sahara desert.

LOW-POO: Renpure Organics
CO: L'Oreal EverCreme Cleansing Conditioner
RO: Renpure Keratin Conditioner. New HG!
LI: L'Oreal EverSleek Humidity-Defying LI Creme
Styling: SM Curl Milk, Argan Oil for sealing, sometimes GFPC Gel, some honey for hold, TIGI Control Freak Serum!!