SAN’s Vitamin D3 Softgels Supply Recommended Levels of This Key Vitamin in a Highly-Absorbable Liquid Softgel Form. Vitamin D Is Normally Obtained From The Diet Or Produced By The Skin Form The Ultraviolet Energy Of The Sun. However, It Is Not Abundant In Food. As More People Avoid Sun Exposure, Vitamin D Supplementation Becomes Even More Necessary To Ensure That Your Body Receives An Adequate Supply. Live A Vibrant Life! Pure and High Grade. HPLC Tested and Certified. Manufactured In A cGMP Facility. 1,000 IU per Serving.