MIAMI, FL, Jan. 05, 2026 (GLOBE NEWSWIRE) -- Earth Science Tech, Inc. (OTC: ETST) (“ETST” or the “Company”), a strategic holding company, today announced that it has engaged Hayden IR, a nationally recognized investor relations and capital markets communications firm, to support the Company’s investor outreach, communications strategy, and market awareness initiatives. The engagement follows ETST’s successful completion of its FINRA 15c-211 clearance and advances its strategy of scaling its businesses into ...