Buffered Vitamin C Powder – Pure Organic, Stomach Friendly Ascorbic Acid VIT C Drink for Daily Immune Support & Collagen Production – Vegan Non GMO Sugar Free – 272 Servings Original, 26oz

Customers find this vitamin C powder to be a high-quality product that dissolves well in cold water and is easy to take in higher doses. They appreciate its immune-boosting properties, particularly during cold and flu season, and consider it good value for money. While some customers report it doesn't upset their stomach at all, others mention it can cause diarrhea. The taste receives mixed reactions, with some finding it fine while others describe it as awful.