Isagenix requires its sales associates to purchase and either consume or resell a minimum amount of product each month in order to remain active. Is this deductible?

It depends. 

• If the minimum amount of product each month is
  • consumed, then no, it is not deductible.
  • resold, then yes, it is deductible

I suggest you use QuickBooks Self-Employed, which is free for TurboTax Self-Employed customers. Click this link to learn how to access QuickBooks Self-Employed.

Here is an article for more details: Tax Guide for the Self-employed: Everything You Need to Know