Micro Ingredients Vitamin C Powder, 2.2lbs (1kg) | Ascorbic Acid Supplement | Essential Vitamin for Women & Men | 1,000 Servings | Unflavored | Non-GMO, Filler Free, Gluten Free

Customers find this vitamin C powder to be a high-quality supplement that makes a big difference in their health, particularly noting its effectiveness in boosting the immune system and helping fight the flu. The powder dissolves easily and is pure ascorbic acid, with customers reporting no side effects and finding it easy to take. While some customers appreciate its pleasant taste, others describe it as extremely sour.