“Customers highly praise NutriBiotic Immunity Meta-C for its effectiveness in supporting overall immune health. It is particularly appreciated by vegans and vegetarians due to its plant-based formulation. Many users find it to be a cost-effective option, especially when purchased from iHerb. The product's buffered vitamin C formula is noted for being gentle on the stomach and easy to absorb, with no reported side effects even at higher doses. The small capsule size makes it easy to swallow, which is a significant advantage for many users. Some customers express concerns about the inclusion of silicon dioxide and magnesium stearate as fillers but acknowledge that these are present in minimal amounts. The product's high alkalinity, matching blood pH, enhances its tolerability and absorption. Users also appreciate the international shipping reliability and value for money. Overall, NutriBiotic Immunity Meta-C is considered one of the best vitamin C supplements available, with excellent quality ingredients and significant benefits for immune support.”