I think it depends on what products you are currently using. If your products contain cones, then you might want to clarify perhaps once or twice a month depending on what type of cones are in the product you're using. This article is great and it's all about silicones and which ones are water soluble and which ones aren't. For myself, I usually allow my hair to tell me when it's time to clarify. My hair tends to feel extremely dry and frizzes a lot more when I have product build up. I would say that on average I clarify at least once a month - I do tend to stay away from products heavy in silicones - but every now and then I do experiment.

If you decide to clarify just make sure you treat yourself a good deep conditioning treatment so that you replace some of the oils that will be lost when you clarify.
Currently:Alaffia Shea & Coconut Enriching Shampoo, Alaffia Virgin Coconut & Shea Enriching Hair Lotion, Qhemet Amla Olive Heavy Cream, Qhemet Honeybush Tea Gel.

Last Texturizer: March 12, 2008
BC: July 21, 2008
Hair: Coarse, low porosity, iii.

Certified Denirophile

"Insanity is doing the same thing over and over again, but expecting a different outcome". ~ Albert Einstein