American Nutriceuticals Vitamin C Powder Sugar Free – Immune Booster -Non-Acidic – No Upset Stomach, No Gas – 4000mg (30-Day Supply)

Customers find this Vitamin C powder to be of high quality and effective for immune support, noting it works better than other products and helps ward off diseases. The supplement is gentle on the stomach, dissolves quickly in water or juice, and is easy to take, with one customer mentioning it's suitable for children. While some customers say the taste isn't bad, others find it bitter, and opinions on value for money are mixed, with some finding it very good while others consider it pricey.