1 Solidarity Soap = 1 year of Vitamin A for 3 children to prevent childhood blindness The Vitamin A claim is calculated based on the average total cost including delivery to provide Vitamin A supplementation for one child in South Asia or sub Saharan Africa for one year. The price of Vitamin A supplementation may vary depending on country specific operations. Vitamin A is essential for the immune system. UNICEF does not endorse any brand company product or service. No portion of the purchase price is tax deductible.