 Plus, if you call right now, you'll qualify for an extra free supply with your order to keep for yourself or share with a family member or friend. But you must call now because this special radio offer is not available in stores or online. So the number to call is 1-800-413-7495. And keep in mind, you have absolutely nothing to lose here because Dr. Pincus' vitamin D3 formula is guaranteed to be safe and effective or your money back.