INVENTORIES

Inventories consisted of the following at June 30, 2018 and December 31, 2017:



	As of June 30,		As of December 31,
	2018		2017
Raw materials	$	653,680	$	688,904
Work in process	25,040		11,878
Finished goods	321,530		337,072
Total	$	1,000,250	$	1,037,854

The Company analyzes its inventory for impairment, both categorically and as a group, whenever events or changes in circumstances indicate that the carrying amount of the inventory may not be recoverable. During the six months ended June 30, 2018, the Company did not impair inventory, compared to an impairment of $363,758, for the six months ended June 30, 2017.

Inventory amounts are shown net of allowance of $457,617 and $562,140 as of June 30, 2018 and December 31, 2017, respectively.