High-Potency Immune Support: 2,000 mg of Vitamin C per serving helps support immune defense and protect against oxidative stress.

Synergistic Nutrient Complex: Paired with 30 mg of zinc, 5,000 IU of vitamin D3, and 300 mg of elderberry extract, the three nutrients people most often take alongside vitamin C, in one serving instead of three bottles.

OmniBiotics Ultimate Vitamin C™: This 4-in-1 formula is built for daily use through every season. It supports normal immune function, antioxidant defense, and respiratory wellness in one serving.

Pure. Potent. Professional Grade: OmniBiotics Ultimate Vitamin C is free of gluten, soy, GMOs, artificial colors, and preservatives, and comes in vegan tablets. Every batch is made in the USA in an NSF-certified cGMP facility.

OmniBiotics Ultimate Vitamin C™ is built for people with demanding routines who expect consistent immune support and would rather take one formula they understand than four bottles they have to remember.