D3Plus

D3Plus goes beyond basic vitamin D supplementation by including essential cofactors that work synergistically to maximize absorption and effectiveness.

Each two-capsule serving delivers 5,000 IU of vitamin D3 alongside vitamin K2 (to direct calcium to bones, not arteries), magnesium (critical for vitamin D metabolism), zinc (supports immune function), and boron (enhances calcium retention).

This comprehensive formula addresses the common issue of taking isolated vitamin D without the minerals your body actually needs to use it properly.

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  • Vitamin D3 with magnesium and zinc

  • Supports immune and bone health

  • Addresses common co-deficiencies

  • Synergistic formula

"I’ve been using these vitamins for more than 10 years and I swear by them. I’ve tried others and I haven’t found any thing close to as good as these. I’m an especially big fan or their iron and D vitamins. And the customer service is excellent."

Bio-Tech Pharmacal

Bio-Tech Pharmacal

Pharmacist-formulated vitamins with clinical standards.

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