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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

$69.95

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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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I had a great experience ordering from Bio-Tech. They did a great job getting me my vitamins at a great price and it a timely manner. Will definitely order from them in the future... Read More


- Clayton R.

Bio-Tech makes great supplements in the high doses I need. Ordering from them was quick and easy.


- Amanda H.

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.

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.