Emergen-C Vitamin C 500mg, Immune Support Crystals, Orange, 56 Packets

Customers find the vitamin C supplement convenient for travel, easy to consume, and appreciate that it doesn't require water. Moreover, the product keeps them healthy and provides a great source of vitamin C, with one customer noting it helps maintain their immune system without causing burnout. However, opinions on value for money are mixed, with some finding it a great value while others consider it pricey.