Immune Support & Vitamin D
Formulated to support Vitamin D levels and immune system health
View ProductCelebrating Decades of Dedication to Wellness & Natural Supplements. Our Secret? It’s Simple
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Featured Supplements
MK-7 (Vitamin K2)
Cardiovascular Health
$69.95
D3-50 50,000 IU Veg...
Cardiovascular Health
$36.29
Folic Acid
Cardiovascular Health
$15.28
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Find Your SupplementOur Role in Personal Wellness Journeys
Bio-Tech is my number 1 choice to purchase Vitamin D3 50. Years ago it was the only place I could find 50k IU. Now I stay for the excellent customer service, reliabilty & speedy sh... Read More
- Melissa
Fast order fulfillment, beautifully packaged, great product. Water-soluble D3 in 50,000iu dosage is a beautiful solution to low D3 levels, critical now we know its role in immune f... Read More
- Scott M.
Per our doctor’s advice and routine bloodwork for over a decade, my wife takess 100,000 weekly and I take 50,000. It’s nice to accomplish in just one or two pills a week versus a c... Read More
- Chris W.
I have been ordering my vitamin D3 from Bio-Tech Pharmacal Inc for a long time. I have been very satisfied with this product & will continue to do so whenever I need more!
- Marcia K.
