Earth Science Tech, Inc. President Commits to Donating 50,000 of his Personal Shares to Become the First Contributor to Earth Science Foundation Doral, FL, Jan. 18, 2018 (GLOBE NEWSWIRE) -- Earth Science Tech, Inc. (OTC PINK: ETST) (“ETST" or the “Company"), an innovative biotech company that operates in the fields of cannabinoid...