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Dr Nigel Rulewski established the company Natural Products Corp and this website over a decade ago. A physician with experience in multiple specialties, he spent over 25 years in the pharmaceutical industry as a chief medical officer gaining unusually broad drug development experience, ranging from identifying and assessing promising drugs to developing novel clinical positioning, designing and leading clinical trials, achieving FDA approvals, directing regulatory affairs, and supporting successful fundraising initiatives.

His interest in the effects of of Vitamin D3 led to the development of a micro-capsule formulation of Vitamin D3, available through this site. He also prepared the website www.vitaminD3world.com which contains extensive reviews of the data on Vitamin D3.

Natural Products Corporation is based in Dover, Delaware USA and has been in business for over ten years. The company was formed to supply quality Vitamin D3 supplements and other health related products. Our products are made in the US in facilities compliant with FDA's Good manufacturing regulations (GMP).

We ship all over the world and offer a 100% satisfaction guarantee. If for any reason your order does not arrive, we will reship at no additional cost including postage. Shipments are dispatched using USPS first class mail. We do not add a supplement charge to the costs of postage, and simply charge whatever the US postal service charges. Costs are estimated by the weight of the shipment.

We appreciate that you can purchase Vitamin D3 from many difference sources. By purchasing from Natural Products Corp you enables us to continue distributing any new information that comes to light on Vitamin D.

Contact Us

Natural Products Corporation

9 East Loockerman St, Suite 3A-250

Dover DE 19901




USA and Canada 877 612 1079

*We will return your call if you call out of normal business hours

Copyright and Permissions

All content on the Natural Products Corporation web site and its information site www.vitaminD3world.com is fully copyrighted. However permission is considered on an individual basis and usually granted. Please send an e-mail to natprodcorp@gmail.com with your specific request.
Thank you.