The products and the claims made about specific products on this site have not been evaluated by the United States Food and Drug Administration and are not intended to diagnose, treat, cure or prevent disease. The information provided on this site is for informational purposes only and is not intended as a substitute for advice from your physician or other health care professional. You should consult with a healthcare professional before starting any diet, exercise or supplementation program, before taking any medication, or if you have or suspect you might have a health problem.

About the VItamin D Microtablet

The Vitamin D micro tablet is tiny and tasteless. It has been formulated with cellulose, an inert plant material that rapidly absorbs water. This ensure that the tablet disintegrates rapidly to ensure absorption of  Vitamin D3.

Because of its size and formulation, it can be swallowed, simply crunched up in the mouth or placed under the tongue until it disintegrates.

We presently offer the micro tablet in two strengths, 2000 and 5000IU with 200 micro tablets per bottle. 

Our products are manufactured in the USA in a GMP compliant plant. (GMP refers to FDA's guidelines on Good manufacturing practices)

Vitamin D3 is sourced by washing lambs wool (from Australia) to retrieve lanolin from which the precursor is extracted and converted to D3 by exposure to ultra violet light-this is exactly how vitamin D is produced in the human body.

This form of Vitamin D3 is considered suitable for vegetarians as the animals are not killed. The lamb's wool is simply washed to extract lanolin which supplies the precursor molecule from which Vitamin D3 is produced.

Vegans, who will not consume anything derived from animal products have a particular problem. There is no source of Vitamin D3 that does not originate in animals. Their only option is to use Vitamin D2 which is derived from plants. However studies have shown that D2 is only 30% as efficient as D3 in raising active Vitamin D levels in humans. Their only other alternative is to expose themselves to sufficient sun light.

The following is a complete list of the ingredients used in the Vitamin D3 micro tablet:

                  Cholecalciferol (vitamin D3)
                  Microcrystalline cellulose
                  DiCalcium Phosphate
                  Silicon Dioxide
                  Croscarmellose Sodium
                  Magnesium sterate

Vitamin D Test Kits
The Vitamin D test kit requires only four drops of blood. Once placed on the blotter provided and allowed to dry, the sample should be  mailed back to the address provided. When the lab receives your sample you will receive an e mail instructing you how to access your results on line. You will also receive a hard copy of your results my mail. The results are ready usually within two to three days of arrival in the lab.

Customs in UK and the rest of Europe
Presently all shipments are made from the USA by first class mail.  Shipments arrive within 7-10 business days.  Our products are packed discretely and we already supply large numbers of customers in the UK and rest of Europe. We have not encountered any problems with UK customs or any other European agency.  But just in case, we offer a delivery guarantee, if your order is not received for any reason we will re-ship the order until it arrives safely. In the near future we plan to ship in bulk to the UK and distribute to the rest of the world from the UK. This will shorten delivery times.

If you have any other questions please do not hesitate to e mail your question to   

About Us 

Natural Products Corporation was formed to supply quality Vitamin D3 supplements and other related products in response to the ever increasing evidence on the importance of  Vitamin D to human health. Our products are made in the USA in facilities compliant with FDA's Good Manufacturing Procedures (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. All products are shipped postage free!!


We welcome your comments, questions and feedback. Please feel free to contact us 9am05pm EST by phone at 877 612 1079. We will return your call if you call out of normal business hours.

You can also contact us by E mail at

Shipping & Returns


Orders are usually shipped by the next business day.

All orders are shipped via USPS First Class Mail to all destinations worldwide.

All orders are packaged to ensure no issues with customs.

All orders are postage free


There are no returns or refunds on test kits or vitamin products.

A damanged or defective test kit will be replaced immediately.

Other products that are damaged or defective may be returned within 30 days for a replacement.

If your order does not arrive for any reason we will reship your order free of charge.


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     Answers to frequently asked questions