Cognitive function improvement is an ability to organize information for the better. One of the methods to improve it is functional food. Gotu kola leaves (Centella asiatica L.) and purple sweet potato (Ipomoea batatas L.) have high antioxidant contents of flavanoid, asiaticoside, triterpenoid, and anthocyanin compounds which are able to counteract free radicals. This research aims at determini…