You searched for: “esthetophores”
esthetophore (s) (noun), esthetophores (pl)
A substance that sustains, or maintains, consciousness: Sometimes when Helena is very tired, she drinks some strong coffee which is an esthetophore for her.

This word is difficult to find in dictionaries, however it was defined in the following lexicon and so it does exist:

—Based on a definition that exists in
Webster's New International Dictionary of the English Language,
Second edition, Unabridged; G. and C. Merriam Company;
Springfield, Massachusetts; 1952; page 875.
This entry is located in the following units: aesth-, esth-, aesthe-, esthe-, aesthesio-, esthesio-, aesthesia-, -esthesia, -aesthetic, -esthetic, -aesthetical, -esthetical, -aesthetically, -esthetically (page 10) phoro-, phor-, -phora, -phorous, -phoresis, -phore, -phori, -phoria + (page 3)