100% REAL

Perhaps the best way to give you an idea as to the quality of UTAK Vitamin D Controls is to begin by telling you what is, and what is NOT used to make them.

UTAK uses a 100% REAL human serum matrix to manufacture its Vitamin D Controls

Standardized Use

UTAK's use of a 100% REAL human serum matrix enables its Vitamin D Controls to be utilized with all contemporary reference methods and immunoassays.