If your hair is feeling overly greasy within a week's time, clarifying with a low poo is fine. If using it once a week starts leaving your hair feeling a little dry and the dryness isn't corrected by your rinse out, you might consider switching to a gentler one.
CG since 11/2011
2c /3a F /Mii, low porosity

Autumn Products /Routine:
Clarifying: Herbal Essences Tealightfully Clean, Suave Professional Deep Clean Peppermint
Low Poo: Renpure Luxurious Argan Oil
Co-washes: VO5 Kiwi Lime Squeeze or Strawberries & Cream
Tresemme Expert Selection Perfectly (un)Done, Cure Care, VO5 KLS
LI (if needed):
Tresemme Perfectly (un)Done, VO5 KLS, Cure Care
Stylers: FSG, L'Oreal Clean gel, Tresemme Flawless Curls Bouncy Curls, LALSG, HETT, AIF
PT: IAGirl's as needed