Bolster your immune defenses with California Gold Nutrition Immune 4 System Support Supplement. This comprehensive formula combines four key ingredients—elderberry, echinacea, vitamin C, and zinc—to provide powerful immune support. Elderberry and echinacea are traditional herbs known for their antiviral and antibacterial properties, while vitamin C and zinc strengthen the immune system's response to infections. Protect your health and well-being with this potent immune booster.