Vitamin D Ultra 10K is our highest potency vitamin D product, providing 10,000 IU of vitamin D per serving, and is intended for situations where more aggressive vitamin D repletion is required.
Our lower dosage option, Vitamin D Synergy (2,000 IU/serving), should be considered for maintaining optimal blood levels of vitamin D for long-term supplementation. Vitamin D Ultra 10K also includes vitamin K in both K1 and the MK-7 form of K2, which is highly bioavailable.
Both of these forms of vitamin K are important to our health: vitamin K1 (the naturally occurring form of vitamin K in vegetables) and vitamin K2 as MK-7, which is a product of soy fermentation (free of soy allergens) and has the special property of metabolizing slowly throughout the day.
Vitamins D and K are essential for optimal bone and arterial health and for maintaining the immune system in proper balance. Made with non-GMO ingredients.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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