About Us 

​Dr Nigel Rulewski established the company Natural Products Corp, The Vitamin D Company 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 utilization of Vitamin D3 led to the development of a micro-capsule formulation of Vitamin D3, available through this website, Natural Products Corp and The Vitamin D Company

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.

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. 

Contact Us
Natural Products Corporation (vitaminD3world)
9 East Loockerman St, Suite 3A-250
Dover DE 19901

By e mail: contact@vitaminD3world.com

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