Immune Challenges

Long Covid can leave your immune system vulnerable. This collection includes targeted supplements—like immunoglobulins—to help you rebuild strength and reduce lingering setbacks.

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23 products

Hand holding Buoy Rescue Drops bottle — “New” label with “6x stronger” callout.Buoy Rescue Drops bottle with benefit icons — headache relief, immune, nervous system, hydration.
Buoy

Rescue Drops + Trace Minerals | Headache, Fatigue and Hydration

$90.00
$90.00
Jarrow Formulas Lactoferrin bottle — immune and gut supportLactoferrin bottle with benefit icons for immune, gut, and iron support
Jarrow Formulas

Lactoferrin | Immune and Gut Support

$67.99
$67.99
NutraMedix Vitamins D3 & K2 bottle — 90 vegetable capsules for bone, heart, and immune supportVitamins D3 & K2 bottle with immune icon — daily capsules for calcium absorption and immune balance
Nutramedix

Vitamin D3 & K2 5000 IU | Bone, Heart & Immune Support

$29.99
$29.99
Quicksilver Scientific Liposomal Methyl B-12—30 mL spray bottle front label.Liposomal Methyl B-12 with icons for brain, energy, mood, and immune support.
Quicksilver Scientific

Liposomal Methyl B-12 | Brain Fog and Energy Support

$52.50
$52.50
Quicksilver Scientific Liposomal Vitamin C, 4-oz amber bottle with navy label.Bottle beside icons showing detox, mood, energy, joints, whole-body and immune support, sleep, and cellular health.
Quicksilver Scientific

Liposomal Vitamin C | Mood, Pain and Immune Support

$33.99
$33.99