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REX Genetics

Vitamin D3 20,000

Vitamin D3 20,000

Regular price $16.99 USD
Regular price Sale price $16.99 USD
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Vitamin D3 20,000

Comprehensive nutritional support for a healthy immune system and bone strength.*

1 Month Supply.

Who is REX Genetics

REX Genetics is a leading dietary supplement company based in Lexington, Kentucky in USA. The company was founded by a highly skilled team with a passion for providing high quality, nutritional supplements grounded in the incredible power of nature. From the start, REX Genetics has aimed to make a true difference in the health and well-being of our customers and the planet through sustainable company practices. Environmental stewardship is a cornerstone of our company.


All REX Genetics ingredients have been analyzed by a third-party lab for potency, quality, and purity and guaranteed to be free from pesticides, insecticides, and other toxic substances. REX Genetics products are manufactured in an environmentally controlled facility according to the current Good Manufacturing Practice (cGMP)

Innovative Design

At REX Genetics we challenged our top research and development professionals to design a premier line of pharmaceutical grade supplements.

Uncompromising Quality

Our success in the health care industry has taught us that quality, safety, and efficacy are intertwined. We’ve carried over the same dedication to uncompromising quality that we use in our pharmaceutical products to REX Genetics nutritional supplements.

Supplement facts

  Amount Per Serving
Vitamin D3 (as Cholecalciferol) 500 mcg (20000 IU)
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Vitamin D3 20,000


    Vitamin D is necessary for absorption of dietary calcium. * Vitamin D also acts a hormone that regulates many organs and systems. *
    Vitamin D exists in two forms: D2, produced by plants and D3, produced in the skin. * Of the two supplement forms, D3 is more efficiently absorbed. *

  • WHY

    • High dose of Vitamin D3. *
    • Helping build strong bones and teeth. *
    • Immune function regulation. *
    • Maintain healthy blood pressure. *
    • Regulate kidney function. *
    • Preventing cognitive decline. *

  • WHO

    REX Genetics Vitamin D3 is for anyone wishing to maintain optimal levels of vitamin D with a high-quality, rapidly absorbable supplement. * Vitamin D3 can be used by those seeking to support a broad range of health functions, including strengthening bones and teeth, and promoting healthy immune, nerve, and circulatory function. *

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