I was cowashing or rinsing out completely everyday when I was experimenting with products. My hair would become dry around noon and would not stay hydrated at all. Then I got the too-producty feeling, which I can't stand. Now that I've gotten it figured out for the most part, I try to wash every other day or every 3 days if I can. (I use a shower cap)
It hasn't hurt my hair at all, unless I low poo then it tends to get a bit fuzzy, so I try to go a couple days after a low poo. It just depends on your hair and your preference, like the previous poster said.
2c-3a - coarse - normal-high porosity - high density - growing out to donate
POOS: Sevi Seabuckthorn, Neutrogena Anti-Residue
RO/LI: Suave Coconut / KCKT
PT: CNPF, gelatine mix
COLOR: henna, amla & indigo
= humectants in low dews