Oo well I'm part asian too and to be honest, I don't think you'll need to shampoo your hair very often.
I suggest you do a low-poo 2-3 times a week and if you feel clarified, cut down to once a week and see what happens.
I don't shampoo at all, but popular low-poos are:
Kinky Curly Come Clean
Curl Junkie shampoo
and Aubrey organics, so you can just browse those websites and have a look Hope that helps!
3b-med texture-med porosity
CG from 21-05-09 2nd try!
Conditioners: Aubrey Organics Honeysuckle Rose, Aubrey Organics GPB Protein
Stylers: CJ CCCC, CJ AFG, KCCC
Gel: Lavera Organic

My hair LOVES CURL JUNKIE <3
www.fotki.com/loopyloops.