First Response contains nutrients, herbs and glandulars that are specific to supporting a healthy immune system:
- Immune Support – Vitamin C, Vitamin B6, Zinc, Selenium, Astragalus, Echinacea purpurea 
- Antimicrobial – Vitamin C, Zinc, Astragalus, Echinacea purpurea, L-Lysine 
- White Blood Cell Support – Thymus Gland Substance, Vitamin C, Astragalus, Echinacea purpurea 
ADDITIONAL SUPPORT- Immunell DNA048 
- Zinc Lozenges DNA080 
- Esterified C DNA035 
- Supreme Probiotics DNA073 
- D-102 System – Antibacterial Rx 
- D-90 Immune Support - Fatigue 
- D-104 Viral – Flu Symptoms Rx 
- D-6 Influenza 
