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Immunity Support

Your immune system runs on nutrients. Vitamin D regulates over 200 genes involved in immune response, vitamin A supports mucosal barrier function, vitamin E protects immune cells from oxidative damage, and omega-3 fatty acids modulate inflammatory signalling. When any of these run low, immune resilience drops — often well before you notice it as frequent colds or slow recovery.

What this collection tests

  • Vitamin D (25-hydroxyvitamin D) — The single most-studied immune-modulating nutrient. Deficiency is associated with elevated rates of respiratory infections, slow recovery, and reduced T-cell function.
  • Vitamin A — Essential for the integrity of mucosal barriers (the first line of defence against pathogens) and for immune cell maturation.
  • Vitamin E — Protects immune cell membranes from oxidative damage. Particularly important in adults over 50, where age-related immune decline is closely linked to vitamin E status.
  • Glutathione Index — The body's master antioxidant. Low glutathione impairs immune cell function and reduces antiviral defences.
  • Omega-3 Index — EPA and DHA modulate the resolution of inflammation. Out-of-balance omega-3 to omega-6 ratios shift the immune system toward chronic low-grade inflammation.

Who benefits most

People recovering from illness, those with frequent infections, anyone managing autoimmune or chronic inflammatory conditions, and older adults focused on immune resilience. Testing reveals where your immune nutrients actually sit so you can support the markers that are low rather than guessing.

All tests use simple at-home dried blood spot collection with lab-grade LC-MS/MS or gas chromatography analysis. Results return in 3–5 business days with reference ranges and interpretation.

Omega-3 Index Basic at-home blood test kit — finger-prick DBS sample for the gold-standard omega-3 cardiovascular marker
 

Omega-3 Index Basic Blood Test

$69.95
Measures your core EPA and DHA levels to assess long-term heart and brain health status.
Glutathione Index at-home blood test kit — measure your master antioxidant status with a finger-prick sample
 
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Glutathione Index Blood Test

$89.95 $99.95
Checks your levels of the "master antioxidant" responsible for detoxification and cellular protection.
Vitamin D at-home blood test kit — measure 25-hydroxyvitamin D levels with a finger-prick dried blood spot sample
 
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Vitamin D Plus Blood Test

$64.95 $69.95
Advanced vitamin D assessment including metabolite insights for a more complete status evaluation.
Vitamin A at-home blood test kit — measure retinol levels with a finger-prick dried blood spot sample
 

Vitamin A Blood Test

$69.95
Critical for maintaining healthy vision, skin, and a robust immune system.
Vitamin E at-home blood test kit — measure alpha-tocopherol antioxidant levels with a finger-prick sample
 

Vitamin E Blood Test

$69.95
Measures this powerful antioxidant to ensure your cells are protected from oxidative stress and aging.
Vitamin D at-home blood test kit — measure 25-hydroxyvitamin D levels with a finger-prick dried blood spot sample
 

Vitamin D Blood Test

$59.95
The essential check for immune strength and bone density to ensure your "sunshine vitamin" levels are optimal.

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