Solgar Ester-C® Plus Vitamin C 1000mg 21 sachets is a natural orange flavoured dietary supplement that helps maintain the immune system's balance, thanks to its high content in vitamin C, zinc, magnesium and B vitamins.These effervescent sachets offer immune support for 24 hours. They contain 1000mg of patented vitamin C with neutral pH per sachet, a format that facilitates its absorption and minimises potential gastrointestinal discomfort. It also includes magnesium and zinc, minerals that help support the cognitive system and contribute to electrolyte balance. It also contains B vitamins (B1, B2, B6, B12) that help and benefit the correct energetic metabolisation.It is compatible with vegan diets and for people with a gluten intolerance.