Introducing Premier Research Labs D3 Serum
D3 Serum offers 1,000 IU per serving of natural-source Vitamin D3 as a fat-soluble liquid in a base of extra virgin olive oil. D3 Serum is the preferred form of vitamin D is D3 (not vitamin D2) because it is better metabolized by the body. D3 Serum is also without those chemical tagalongs such as magnesium stearate (a questionable excipient) or other chemical no-no’s.
Vitamin D3 has been shown to be supportive of immune functions of the body, as well as feeling more energy and less fatigue. Biocompatible Vitamin D3 has also been shown to be protective of your immune system in fighting viral and bacterial illnesses.