1. 
   

   Improves respiratory epithelial barrier function against pathogenic invasion

2. Maintains barrier integrity by collagen synthesis as well as antioxidant action

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Vitamin D3 1000 IU

Strengthens the second line of defense

• 
  

  Stimulates the phagocytic macrophages to enhance innate cellular immunity

• Increases production of endogenous antimicrobial cathelicidin in macrophages

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Zinc sulphate 33 mg

Strengthens the third line of defense

• 
  

  Plays essential role to improve T-cell count as well as function

• Improves T-cell dependent antibody production & humoral immune response