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)

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 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

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

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

Great Products! Great Service! Delivered Quick! Thanks

- Ronald D.

I appreciate Bio-Tech's ethos. They make great products that you can trust, they are transparent, and their service is fast.

- Bethany B.

I use this company, because the vitamins are real. I had a gastric bypass surgery in 2007 and this company has kept my levels on track.

- Patsy M.