Get your taxes done using TurboTax

Sorry but product used  personally is not deductible ... all you get is a cheaper way to buy the product you use.  In fact you must remove the product used personally from the inventory figures on the Sch C.

Now if you use up some product in a demonstration fashion (like avon sellers will have demo product for buyers to try on)  or give some away like a loss leader or gift   that would be different.