Active B12

Also known as holotranscobalamin also see Vitamin B12. Active B12 accounts for approximately 10 to 20% of total B12 levels. Considered to be a more sensitive marker than serum B12 as it degrades faster than serum B12 with a short life span making it a more sensitive indicator or B12 deficiency.

Available Tests

Bespoke

FDX 00

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Cardio Check

FDX 21

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Thyroid Ultra

FDX 22

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Femme Ultra

FDX 25

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Femme Reset

FDX 26

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Man Reset

FDX 27

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Man Ultra

FDX 28

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Weight Aware

FDX 29

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Femme Fertility

FDX 32

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Fertility For Men

FDX 33

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Brain Check

FDX 34

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Active B12 & Red Cell Folate

FDX 37

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Active B12

FDX 75

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Thyroid Baseline

FDX 401

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Femme Essential

FDX 402

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Man Essential

FDX 403

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Femme Essential+

FDX 404

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Man Essential+

FDX 405

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Professional test kit instructions

Patient Test Info Sheet

Example Snapshot Report

The FDX Method

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