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Immune Support & Vitamin D

Formulated to support Vitamin D levels and immune system health

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Celebrating Decades of Dedication to Wellness & Natural Supplements. Our Secret? It’s Simple

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Featured Supplements

MK-7 (Vitamin K2) | Vitamin K2 (MK-7)

MK-7 (Vitamin K2)

Cardiovascular Health

$49.95

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MK-7 (Vitamin K2)

Supports bone and cardiovascular health* Excellent complement to calcium and vitamin D supplements for optimal bone health*

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D3-50 50,000 IU Vegetable Caps | Vitamin D3 (Cholecalciferol)

D3-50 50,000 IU Veg...

Cardiovascular Health

$36.29

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D3-50 50,000 IU Vegetable Caps

Supports bone, cardiovascular, neuromuscular, and immune health*

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Folic Acid (5 mg) | Folic Acid

Folic Acid

Cardiovascular Health

$15.28

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Folic Acid

Supports healthy function of both the cardiovascular and nervous system* Contributes to reducing a woman's risk of having a child with a neural tube birth defect*

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Our Role in Personal Wellness Journeys

These pills were suggested from my doctor several years ago and my Vitamin D numbers never looked so good.


- Christy H.

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

After taking the vitamins, my liver numbers have been great and my doctor drastically lowered my medication. I will definitely continue to buy from this company.


- Joseph P.

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.